Indiana Yard and Garden – Purdue Consumer Horticulture A Purdue Extension Service for Home Gardeners

Category: Trees

Celebrate Arbor Day April 29

There’s no better way to celebrate Arbor Day then to add beauty and value to your home landscape with a new tree. Trees can also provide shade and wind protection for many years to come if given the proper start. The last Friday in April is both the national and the Indiana Arbor Day. The first step should be thoughtful selection of an appropriate plant to match the location. Assess your planting location for such…Read more about Celebrate Arbor Day April 29[Read More]

 Categories:

Common culprits of tree damage-April 2016

Question & Answer Common culprits of tree damage Q.  This is a very beautiful large tree that I lost last year. It’s the second one I have lost in the past seven years. Would you be able to see from the photo what might be happening to my trees? I have more beautiful trees on my property that I would like to save if I can. – L.P., Elizabeth, Indiana A. While I can’t be certain…Read more about Common culprits of tree damage-April 2016[Read More]

 Categories:

Likely culprits of dieback-March 2016

Question & Answer Likely culprits of dieback Q. This is one of our two dwarf Alberta spruce trees. In the fall we noticed the very top of one turning brown; it kept getting worse from top down, and we noticed white webs. We took a picture of it, took it to a local nursery and showed them the picture. They said it was spider mites. We bought a systemic insect control and used per directions…Read more about Likely culprits of dieback-March 2016[Read More]

 Categories:

Many possible reasons for early loss of white oak leaves / Marestail Control

Q. I have a white oak tree that lost about half of its leaves to a varmint. I’m guessing June bugs that were in a bunch about 15 feet away. The tree did not put out any new growth except late in the summer on the end of the tallest limb. Meantime, a new tree sprung up. I’ll include some pictures that will show the leaves and their color. I have no idea what flavor…Read more about Many possible reasons for early loss of white oak leaves / Marestail Control[Read More]

 Categories:

Larch Needle Blight/White Ash Woes/Top-setting Onions

Q. I have noticed lately that our three big, lovely larches are losing needles on their bottom half. The needles have a banded pattern of color, and I fear larch needle blight. How can I confirm or reject this hypothesis? Is there anything we can do to treat them? – JC A. Specific diagnosis will require more than just these photos. I recommend sending samples of your trees to the Purdue Plant and Pest Diagnostic…Read more about Larch Needle Blight/White Ash Woes/Top-setting Onions[Read More]

 Categories:

Water Now to Minimize Winter Injury

Dry summers are not that unusual in the Midwest. But this year the dry spell followed an unusually wet spring and early summer in many areas. Of particular concern this year is that the dry spell is lasting well into autumn, putting plants in poor condition to get through the winter when water will be unavailable due to frozen soil. Newly planted trees, shrubs and perennial flowers will be at most risk of winter injury…Read more about Water Now to Minimize Winter Injury[Read More]

 Categories:

When Tree Roots Surface

Much to the dismay of homeowners, landscape trees sometimes grow roots on top of the surface of the lawn or possibly even buckle sidewalks and driveways. These surface roots can be quite a nuisance to lawn mowers and human feet. There are several reasons why the roots come to the surface. Some tree species are more prone to surface roots than others, most notably silver maple, poplar and willow. But almost any large, older tree…Read more about When Tree Roots Surface[Read More]

 Categories:

The Purple Landscape

Trees and shrubs with colorful foliage can add a steady supply of interest in the landscape throughout the growing season. Purple foliage is quite popular among plant breeders and garden enthusiasts.  Here’s a look at some possibilities to consider. Small to Medium Trees Japanese Maple – There are many cultivars available in the trade. Some have purple foliage all summer while others may be purple only in spring and/or autumn. Redbud “Forest Pansy” – This…Read more about The Purple Landscape[Read More]

 Categories:

A “Pearfect” Nightmare!

Think about what might be the perfect ornamental tree for your yard. Fast, compact growth, pretty white flowers in spring, glossy green foliage in summer, spectacular scarlet – purple fall color, and relatively resistant to pests and diseases. It is easy to propagate and transplant and adapts to a wide range of site conditions. You want one, don’t you? This describes the ‘Bradford’ cultivar of Callery (ornamental) Pear. It is difficult to find a downtown…Read more about A “Pearfect” Nightmare![Read More]

 Categories:

Coping with Storm-Damaged Trees

Homeowners assessing tree damage caused by recent storms will want to make a few important decisions soon. Small trees with minor damage can probably be taken care of by the homeowner, but large, mature trees likely will need the help of a professional tree service. It can be hard to decide whether trees with severe damage should be removed. Homeowners often are reluctant to cut down a tree, either because of sentimental attachment or because…Read more about Coping with Storm-Damaged Trees[Read More]

 Categories:

Page last modified: May 25, 2022

Indiana Yard and Garden – Purdue Consumer Horticulture - Horticulture & Landscape Architecture, 625 Agriculture Mall, West Lafayette, IN 47907

© 2026 Purdue UniversityAn equal access/equal opportunity universityCopyright ComplaintsMaintained by Indiana Yard and Garden – Purdue Consumer Horticulture

If you have trouble accessing this page because of a disability, please contact Indiana Yard and Garden – Purdue Consumer Horticulture at homehort@purdue.eduAccessibility Resources