Got Nature? Blog

It is natural to think of spring as the season of flowers in our woodlands, but summer can also provide some outstanding displays of native bloom. In addition, these flowers are often attracting some of our largest and showiest butterflies and bumblebees. Here are a few of the late summer flowers you may encounter in local woodlands. (Click on photos to enlarge.)

Wood Nettle is a look-but-don’t-touch type of plant. While I find the foamy white flowers attractive, the stinging hairs along the stems and under the leaves feel like instant poison ivy. This is one of the reasons Foresters don’t wear short pants in the woods! It is a good indicator of moist and fertile soils.

 

 

 

Wingstem is a large plant with thin ridges along the stems providing the name. These head-high and taller plants of edges, thin woodlands and fertile soils put on a great display. It seems to be a common plant in black walnut plantations as both the good soils and light shade favor its growth.

 

 

 

Tall Bellflower catches the eye as blues seem to stick out in the green and yellow dominated foliage. I see this attractive star-shaped flower on tall stalks at the edge of woodlands and in areas where more sunlight enters the forest understory.

 

 

 

 

Pale or Yellow Jewelweed is in the same genus as the impatiens found in the garden stores. The tube flowers turn into spring-loaded seed pods that pop with the least amount of pressure applied by a finger and thumb. It is hard not to be startled even if you have experienced this mini-explosion before. Spotted Jewelweed is very similar, but has orange flowers with dark dots.

 

 

White Snakeroot can be quite common in forest understories. The white flowers may be the dominant bloom in some woodlands, partly because of the toxic nature of the plant. It is toxic to both livestock and humans and is the source of the milk sickness that killed Abraham Lincolns mother. Cows grazing in woodlands would eat the white snakeroot, which tainted the milk consumed by the pioneer families.

 

 

Jack-in-the-Pulpit flowers in the spring, but the cluster of red berries which ripen in the late summer and fall are large and bright, so they draw attention. While toxic to humans some birds and other wildlife will consume the seeds. The less common, but related Green Dragon plant has similar berry clusters.

 

 

 

Great Blue Lobelia has a name that matches its visual impact. The tall spikes of brilliant blue flowers are excellent for pollinators and put on a great show. This is a plant of woodland edges and moist soils, but can get to be 4 feet tall, with large numbers of flowers, so it is hard to miss when present.

 

 

Resources:
Celebrate Pollinator Week with Flowers of June Tour, Got Nature? Blog, Purdue Extension – FNR
Pollinator Conservation Education, Purdue Extension – Entomology
What’s buzzing in your backyard? Learn about protecting pollinators, beekeeping with Purdue Extension, Purdue Extension News
Indiana Monarch and Pollinator Conservation website
Protecting Pollinators: Protecting Pollinators in Home Lawns and Landscapes, publication, The Education Store, Purdue Extension’s resource center
Consider Pollinators When Planning Your Garden, Got Nature? Blog, Purdue Extension – FNR
Attract Hummingbirds to Your Yard video, Purdue Extension – FNR YouTube Channel
Tracking the Bloom, Got Nature? Blog, Purdue Extension – FNR
Indiana’s Native Orchids, Indiana Forestry & Woodlands Association (IFWOA) Webinar
Landscape Uses of Native Plants, Indiana Native Plant Society
Find an Arborist video, Trees are Good-International Society of Arboriculture (ISA)
Tree Installation: Process and Practices, The Education Store, Purdue Extension resource center
Tree Planting Part 1: Choosing a Tree video, Purdue Extension
Wildflowers and Ferns of Indiana Forests: A Field Guide, Google Books
Intro to Trees of Indiana: Flowering Dogwood, Got Nature? Blog, Purdue Extension – FNR
ID That Tree Spring Bloom Edition: Bladdernut, Got Nature? Blog, Purdue Extension – FNR
ID That Tree, Purdue Extension-FNR YouTube playlist

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

---

Discover effective strategies for controlling Johnsongrass, an invasive warm-season grass prevalent in Indiana. This guide explains several control options for johnsongrass issues in native conservation plantings. Essential reading for land managers and conservationists committed to maintaining healthy grassland ecosystems: Johnsongrass Control.

Check out the Managing Conservation Plantings Series which include details on how to control invasive species and other problematic plants in Conservation Reserve Program (CRP) plantings and native warm-season grass and wildflower conservation plantings.

Publications in this series include:

• Golden Rod Control
• Thinning Native Warm-Season Grasses
• Sericea Lespedeza Control
• Woody Encroachment and Woody Invasives
• Johnsongrass Control
• Reed Canarygrass Control
• Teasel Control (Common and Cut Leaved)
• Controlling Introduced Cool-season Grasses
• Crownvetch, Sweetclover and Birdsfoot Trefoil Control

Resources:
Deer Impact Toolbox & Grassland Management, Purdue Extension Pond and Wildlife Management
Pond and Wildlife Management, Purdue Extension
Forestry for the Birds Virtual Tour and Pocket Guide, Got Nature? Blog, Purdue Extension – FNR
Frost Seeding to Establish Wildlife Food Plots and Native Grass and Forb Plantings – Purdue Extension – FNR YouTube channel
Wildlife Habitat Hint: Tips for Evaluating a First Year Native Grass and Forb Plantings, Purdue Extension – FNR YouTube Channel
Drone Seeding Native Grasses and Forbs: Project Overview & Drone Setup, Purdue Extension – FNR YouTube channel
Ask an Expert: Wildlife Food Plots, video, Purdue Extension – FNR YouTube Channel
Handling Harvested Game: Episode 1, Field Dressing, video, Purdue Extension – FNR YouTube Channel
Managing Your Woods for White-Tailed Deer, The Education Store
Forest Improvement Handbook, The Education Store
Forest Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
A Template for Your Wildlife Habitat Management Plan, The Education Store
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube channel
Nature of Teaching Unit 1: Animal Diversity and Tracking, The Education Store
Nature of Teaching, Purdue College of Agriculture
Invasive Species Playlist, Playlist, Purdue Extension – FNR YouTube Channel
Report Invasive, Purdue Extension
Subscribe Purdue Extension – Forestry and Natural Resources YouTube Channel

Jarred Brooke, Wildlife Extension Specialist
Purdue Department of Forestry and Natural Resources

---

Explore the impact of tree and shrub encroachment on conservation plantings. This guide highlights how native woody species like blackberry and sumac can benefit wildlife, while invasives species and excessive woody encroachment can degrade habitat for species like Henslow’s sparrows. Learn how to manage woody invasives to preserve native grasses and wildflowers. Essential reading for conservationists and land managers interested in grassland ecosystems: Woody Encroachment and Woody Invasives.

This publication is part of a seven publication series The Managing Conservation Plantings Series which include details on how to control invasive species and other problematic plants in Conservation Reserve Program (CRP) plantings and native warm-season grass and wildflower conservation plantings.

Publications in this series include:

• Golden Rod Control
• Thinning Native Warm-Season Grasses
• Sericea Lespedeza Control
• Woody Encroachment and Woody Invasives
• Johnson Grass Control
• Reed Canarygrass Control
• Teasel Control (Common and Cut Leaved)
• Controlling Introduced Cool-season Grasses
• Crownvetch, Sweetclover and Birdsfoot Trefoil Control

Resources:
Deer Impact Toolbox & Grassland Management, Purdue Extension Pond and Wildlife Management
Pond and Wildlife Management, Purdue Extension
Forestry for the Birds Virtual Tour and Pocket Guide, Got Nature? Blog, Purdue Extension – FNR
Frost Seeding to Establish Wildlife Food Plots and Native Grass and Forb Plantings – Purdue Extension – FNR YouTube channel
Wildlife Habitat Hint: Tips for Evaluating a First Year Native Grass and Forb Plantings, Purdue Extension – FNR YouTube Channel
Drone Seeding Native Grasses and Forbs: Project Overview & Drone Setup, Purdue Extension – FNR YouTube channel
Ask an Expert: Wildlife Food Plots, video, Purdue Extension – FNR YouTube Channel
Handling Harvested Game: Episode 1, Field Dressing, video, Purdue Extension – FNR YouTube Channel
Managing Your Woods for White-Tailed Deer, The Education Store
Forest Improvement Handbook, The Education Store
Forest Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
A Template for Your Wildlife Habitat Management Plan, The Education Store
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube channel
Nature of Teaching Unit 1: Animal Diversity and Tracking, The Education Store
Nature of Teaching, Purdue College of Agriculture
Invasive Species Playlist, Playlist, Purdue Extension – FNR YouTube Channel
Report Invasive, Purdue Extension
Subscribe Purdue Extension – Forestry and Natural Resources YouTube Channel

Jarred Brooke, Wildlife Extension Specialist
Purdue Department of Forestry and Natural Resources

---

The Natural Resources Teacher Institute (NRTI) is a weeklong, immersive professional development workshop designed to provide teachers with the knowledge, skills, and tools to effectively teach their students about forest ecology and forest management in Indiana. The program is normally based at the Morgan Monroe State Forest near Martinsville, Indiana, but every five years a reunion program is held in Tippecanoe County for past participants. The second reunion program was held on July 9th and 10th providing participants opportunities to learn more about wildlife, forest products, habitat restoration and tree identification.

Past and present Purdue FNR staff members provided instruction for two of the programs. Participants were treated to an introduction to bird biology and population monitoring through a bird banding demonstration at the Purdue Wildlife Area by Patrick Ruhl, Clinical Assistant Professor, and Jessica Outcalt, Natural Resources Training Specialist. Bird netting and banding requires special licensing and fortunately for us, Patrick Ruhl holds those credentials, allowing participants to measure, place a leg band, and release several species of birds.

Participants were also lead on a hike at Martell Forest by retired faculty members Harmon and Sally Weeks, highlighting ID of several native trees and plants and their importance to a variety of wildlife. Copies of tree and shrub ID books authored by the Weeks were also provided to participants.

We had an introduction to making maple syrup and collecting honey on a property that is also integrating the Forestry for the Birds management recommendations into their property activities. A tour of the Springboro Tree Farm, managed by Rich Hines and family, introduced the maple syrup production process and provided a tour of their property demonstrating bird- friendly habitat management in conjunction with maple syrup and honey production.

Restoration of rare habitats was the topic for our tour of the Granville Sand Barrens and neighboring properties managed by Bob Easter, Stewardship Director for NICHES, lead us on a tour of the Granville Sand Barrens and Roy Whistler Wildlife Area. Bob provided a background on the history of the area and the efforts to restore the rare sand barrens community, home to several plant NICHES Land Trust. and animal species with threatened or rare designations in Indiana.

The Natural Resources Teacher Institute is coordinated by Lexi Eiler Alwine, IN DNR Forestry Education Specialist, Donna Rogler, retired IN Project Learning Tree Coordinator and originator of NRTI, Mary Cutler, Naturalist for Tippecanoe County Parks and Recreation, and Lenny Farlee, Purdue FNR Extension Forester. All of these folks also happen to be Purdue Forestry and Natural Resources Alumni as well! NRTI is made possible by support from a host of individuals and organizations sponsoring teacher participation.

Resources:
Purdue Forestry and Natural Resources Facebook Page
Project Learning Tree
Indiana Department of Natural Resources Division of Forestry
The Nature of Teaching, Purdue Department of Forestry and Natural Resources
The Nature of Teaching: Trees of the Midwest, The Education Store
The Nature of Teaching: Adaptations for Aquatic Amphibians, The Education Store
Trees of the Midwest Webinar, Nature of Teaching YouTube channel
Indiana Forestry Educational Foundation, Indiana Forestry & Woodland Owners Association
Forest/Timber, Playlist, Purdue Extension – Forestry and Natural Resources YouTube Channel
Natural Resources Teacher Institute Takes Forestry to the Classroom, Purdue FNR News
Purdue Extension

Lenny Farlee, Sustaining Hardwood Extension Specialist
Purdue University Department of Forestry and Natural Resources

---

The Hardwood Ecosystem Experiment (HEE) just updated their newsletter for the 2025 spring/summer season. The HEE is a long-term research initiative dedicated to understanding the ecological and social impacts of forest management in Indiana’s Central Hardwood Region. Launched in 2006, the HEE is one of the most ambitious forest ecology studies in the United States, designed to span 100 years across over 9,000 acres of state forest land. The HEE studies the effectiveness of different forest management methods in promoting successful oak and hickory regeneration and the effects of these management practices on plant and animal species. With nine partnering universities and agencies conducting research on the ecological and social impacts of long-term forest management, HEE has been an integral part of completed research for over 30 plus M.S. and Ph.D. level graduate students. The project has also employed more than 250 undergraduate and post-graduate students to conduct summer field work.

Highlights from the new Newsletter include:

• 2025 Field Season Round-Up
  By Kat Shay
  “The crew has been hard at work this field season—they finished all the Yellowwood State Forest plots and are in the last unit of Morgan Monroe State Forest now…”
• Breeding Bird Surveys
  By Rae Garrett
  “Breeding bird surveys were completed this field season, despite the weather doing its best to thwart our plans!…”
• Nightjars/ARUs
  By Haley Holiman (SIU)
  “Southern Illinois University’s nightjars crew deployed ARUs all across the HEE and conducted point count surveys…”
• Bats
  By Dr. Joy O’Keefe and Team
  “The bat crew monitored roost trees, conducted mist-netting, and performed radio-telemetry surveys…”
• Digital Forestry
  By Purdue University Digital Forestry
  “During leaf-off this winter we began backpack and UAV LiDAR mapping the inaugural HEE Unit 3 for our long-term project…”
• Botany News
  By Megan Crecelius
  “Southern Illinois University’s nightjars crew deployed ARUs all across the HEE and conducted point count surveys…”
• Out and About: HEE Outreach
  By Kat Shay and Rae Garrett
  “From radio interviews to presentations on fire ecology, the HEE team has been actively sharing research and connecting with partners across the state…”
• HEE Proposal Request
  By Mike Saunders
  “Proposal requests for the 2026–2028 HEE budget will be sent out in the next few weeks… “

To view the full newsletter visit: HEE Newsletter.

Resources:
Hardwood Ecosystem Experiment – Wildlife Responses to Timber Harvesting, The Education Store, Purdue Extension’s resource center
The Hardwood Ecosystem Experiment: Indiana Forestry and Wildlife, The Education Store
Breeding Birds and Forest Management: the Hardwood Ecosystem Experiment and the Central Hardwoods Region, The Education Store
The Hardwood Ecosystem Experiment: 2006-2016, The Education Store
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
Hardwood Ecosystem Experiment Playlist, Subscribe to Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Hardwood Ecosystem Experiment – Prescribed Fire, Purdue Extension – FNR YouTube
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Investing in Indiana Woodlands, The Education Store
Forest Improvement Handbook, The Education Store
Finding help from a professional forester, Indiana Forestry & Woodland Owners Association

---

Welcome to ID That Tree! In this episode, Purdue Extension Forester Lenny Farlee introduces us to a widespread and often overlooked native plant, the wild grape vine. Found across Indiana, this vine is especially noticeable in late summer and fall. Learn how to identify wild grape by its vine structure, bark, leaves and growth. Whether you’re a nature enthusiast, land manager or just curious about native plants, this video offers a quick and informative look at how to spot wild grape vine and appreciate its role in Indiana’s ecosystems.

 

If you have any questions regarding wildlife, trees, forest management, wood products, natural resource planning or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

Resources:
ID That Tree – Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Purdue Arboretum Explorer
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Report Invasive, Purdue Extension
Fifty Common Trees of Indiana, Purdue Extension – FNR
Habitat University, Episode 12 – Exploring the challenges of Invasive Species, Habitat University-Natural Resource University
Shrubs and Woody Vines of Indiana and the Midwest, Purdue University Press
Native Trees of the Midwest, Purdue University Press
Professional Forester, Indiana Forestry Woodland Owners Association
District Forester, Indiana Department of Natural Resources, 10+ acres
Find an Arborist, International Society of Arboriculture
Forest Improvement Handbook, The Education Store

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

---

Welcome to ID That Tree! In this episode, Purdue Extension Forester Lenny Farlee introduces us to a striking native shrub known as Wild Hydrangea. Found in forest understories and along wooded slopes in southern Indiana, this plant is especially noticeable in summer thanks to its large, white flowers. Learn how to identify this species by it’s unique characteristics. Whether you’re a student, hiker, gardener or just curious about native plants, this video offers a quick and informative look at how to spot Wild Hydrangea and appreciate its role in Indiana’s woodland ecosystems.

 

If you have any questions regarding wildlife, trees, forest management, wood products, natural resource planning or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

Resources:
ID That Tree – Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Purdue Arboretum Explorer
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Report Invasive, Purdue Extension
Fifty Common Trees of Indiana, Purdue Extension – FNR
Habitat University, Episode 12 – Exploring the challenges of Invasive Species, Habitat University-Natural Resource University
Shrubs and Woody Vines of Indiana and the Midwest, Purdue University Press
Native Trees of the Midwest, Purdue University Press
Professional Forester, Indiana Forestry Woodland Owners Association
District Forester, Indiana Department of Natural Resources, 10+ acres
Find an Arborist, International Society of Arboriculture
Forest Improvement Handbook, The Education Store

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

---

Discover the challenges posed by Sericea lespedeza, an invasive plant species prevalent in Indiana. This guide provides essential facts and control options, highlighting how Sericea outcompetes native plants and offers little value to wildlife. A must-read for conservationists and land managers dedicated to preserving native ecosystems.

Learn the most effective strategies for managing Sericea lespedeza across diverse landscapes including old fields, conservation plantings and native grasslands: Sericea Lespedeza Control

This publication is part of a seven publication series The Managing Conservation Plantings Series which include details on how to control invasive species and other problematic plants in Conservation Reserve Program (CRP) plantings and native warm-season grass and wildflower conservation plantings.

Publications in this series include:

• Golden Rod Control
• Thinning Native Warm-Season Grasses
• Sericea Lespedeza Control
• Woody Encroachment and Woody Invasives
• Johnson Grass Control
• Reed Canarygrass Control
• Teasel Control (Common and Cut Leaved)
• Controlling Introduced Cool-season Grasses
• Crownvetch, Sweetclover and Birdsfoot Trefoil Control

Resources:
Deer Impact Toolbox & Grassland Management, Purdue Extension Pond and Wildlife Management
Pond and Wildlife Management, Purdue Extension
Forestry for the Birds Virtual Tour and Pocket Guide, Got Nature? Blog, Purdue Extension – FNR
Frost Seeding to Establish Wildlife Food Plots and Native Grass and Forb Plantings – Purdue Extension – FNR YouTube channel
Wildlife Habitat Hint: Tips for Evaluating a First Year Native Grass and Forb Plantings, Purdue Extension – FNR YouTube Channel
Drone Seeding Native Grasses and Forbs: Project Overview & Drone Setup, Purdue Extension – FNR YouTube channel
Ask an Expert: Wildlife Food Plots, video, Purdue Extension – FNR YouTube Channel
Handling Harvested Game: Episode 1, Field Dressing, video, Purdue Extension – FNR YouTube Channel
Managing Your Woods for White-Tailed Deer, The Education Store
Forest Improvement Handbook, The Education Store
Forest Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
A Template for Your Wildlife Habitat Management Plan, The Education Store
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube channel
Nature of Teaching Unit 1: Animal Diversity and Tracking, The Education Store
Nature of Teaching, Purdue College of Agriculture
Invasive Species Playlist, Playlist, Purdue Extension – FNR YouTube Channel
Report Invasive, Purdue Extension
Subscribe Purdue Extension – Forestry and Natural Resources YouTube Channel

Jarred Brooke, Wildlife Extension Specialist
Purdue Department of Forestry and Natural Resources

---

Purdue Landscape Report: It’s that time again!  With the arrival of warm temperatures and increased rainfall, many of us are getting to work on our lawns, gardens, and landscaping.  Unfortunately, this often comes with discovering what new (or old) invasive species are here to haunt us.  So far this year, the invasive I’ve gotten the most questions on is the Asian jumping worm.  This earthworm’s life cycle tends to experience ‘boom & bust’ years due to their feeding habits, and, anecdotally speaking, we appear to be experiencing an increase in their populations throughout the state this season.  Now is a great time to brush up on our understanding of this organism, and the revisit how it impacts our environment.

Identification
While Asian jumping worms share a lot of traits with other, less harmful earthworm species, they do have some features we can use to differentiate them from the rest.  Jumping worms tend to be darker in color, since they live either on top of the soil or just under the first layer of plant detritus and get more exposure to sunlight.  Asian jumping worms also have a significantly higher number of bristles, or setae, that they can use to move around.  They can have as many as forty bristles per segment, in contrast to the eight found on other species, giving them the traction they need to wriggle and squirm as violently as they do.  Perhaps the easiest feature we can use to identify them is the clitellum, the organ that contains they reproductive organs.  On Asian jumping worms, the clitellum just looks like a very pale set of segments close to the anterior end of the worm, whereas on most other worms, it’s about midway down the body and saddle-shaped.  Finally, we can detect their presence by changes in our soil.  Asian jumping will not improve soil quality for growing like other earthworms can, but rather change the soil consistency into something like coffee grounds, rendering it unsuitable for growing most crops and ornamentals.

Environmental Impact
As I alluded to above, Asian jumping worms do significant damage to soil quality when left unmanaged.  These earthworms, unlike their beneficial cousins, do not provide ecosystems services like soil aeration or castings that help add nutrients to the soil.  Since they live at the surface, they do not burrow, and their castings lock in nutrients and often get swept away by hydrological events.  Asian jumping worms also tend to gather in large groups whenever they infest an area, resulting in most of the decaying plant material and other organic material being stripped out of the soil.  Often, the only plants capable of developing in those conditions are invasive themselves!

Reporting
We are still learning about the Asian jumping worms spread in Indiana, so we are asking everyone to please report sightings.  You can report them either online by going to the EDDMapS website or you can call 1-866-NOEXOTIC.  We ask that you take a picture and tell us where you were when you saw the worms. You can also check the Report Invasive webpage for up-to-date information on all kinds of invasive species, or reach out to Bob Bruner, Purdue University Exotic Forest Pest Educator, by emailing rfbruner@purdue.edu.  With your help, we can map out this worm and create effective plans to limit its presence in our state.

View the original article on the Purdue Landscape Report website: Asian Jumping Worms: How to ID this soil pest.

Subscribe and receive the newsletter: Purdue Landscape Report Newsletter.

Resources:
Gardeners Asked to be Vigilant This Spring for Invasive Jumping Worm, Purdue Extension – FNR Got Nature? Blog
Fall webworms: Should you manage them?, Purdue Landscape Report
Mimosa Webworm, The Education Store, Purdue Extension resource center
Sod Webworms, Turf Science at Purdue University
Bagworm caterpillars are out feeding, be ready to spray your trees, Purdue Extension Forestry & Natural Resources (FNR) Got Nature? Blog
Landscape & Ornamentals: Bagworms, The Education Store
Purdue Plant Doctor App Suite, Purdue Extension-Entomology
Find an Arborist website, Trees are Good, International Society of Arboriculture (ISA)
ID That Tree – Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Fifty Common Trees of Indiana, Purdue FNR web page list
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Report Invasive, Purdue Extension
Native Trees of the Midwest, Purdue University Press

Bob Bruner, Exotic Forest Pest Educator
Purdue Entomology

---

With rainfall well below average, watering your trees is more important than ever. Indiana typically receives around 3.14 inches of rain in September, but as of 2025, only 1.31 inches have fallen—making this month even drier than last year. These conditions can lead to dry, wilted leaves and stress for trees across the state, especially during prolonged heat. To see how drought is affecting your area, visit the U.S. Drought Monitor for Indiana-specific maps.

In this video, Lindsey Purcell, Executive Director of the Indiana Arborist Association, explains why consistent watering is critical and shares practical tips to help your trees stay healthy through dry spells.

Extreme heat can have a major impact on tree health and survival. Water is the most limiting ecological resource for a tree, and without adequate moisture, decline and death are imminent. It reduces carbohydrate production, significantly lowering energy reserves and production of defense chemicals in the tree. Check out this publication titled Drought? Don’t Forget the Trees! to learn what to look for for any weakening issues including pests that like the dry conditions.

If you have any questions regarding wildlife, trees, forest management, wood products, natural resource planning or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

More Extreme Heat Resources:
Climate and Drought Maps, Purdue Indiana State Climate Office
Summer Tree Care, Purdue Landscape Report
Drought? Don’t Forget the Trees!, The Education Store, Purdue Extension resource center
Extreme Heat Including Fact Sheets, Purdue Extension – IN-PREPared
Extreme Heat – Resources, Extension Disaster Education Network (EDEN)
Drought Information​, Indiana Department of Natural Resources
Planting Your Tree Part 1: Choosing Your Tree, Purdue Extension YouTube Channel
Tree Selection for the “Un-natural” Environment, The Education Store
Tree Pruning Essentials Video, Purdue Extension YouTube Channel
Tree Defect Identification, The Education Store
Tree Wound and Healing, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources
Surface Root Syndrome, The Education Store
Submit Sample, Purdue Plant & Pest Diagnostic Lab
Find an Arborist, Indiana Arborist Association

Ben McCallister, Urban Forestry Specialist
Purdue Forestry & Natural Resources

---