Versatile Vegetables for Fall Gardening – Indiana Yard and Garden – Purdue Consumer Horticulture

Versatile Vegetables for Fall Gardening

Photo showing Red Leaf Lettuce. Photo credits: Rosie Lerner/Purdue Horticulture

Red Leaf Lettuce
Photo credits: Rosie Lerner/Purdue Horticulture

Fall is an excellent time to grow many vegetable crops in Indiana when the gardener can take advantage of cooler temperatures and more plentiful moisture. Fall gardening helps extend your gardening season so that you can continue to harvest produce after earlier crops have faded.

Many vegetable crops are well adapted to planting in late summer for a fall harvest. Early spring-planted crops such as radishes, lettuce and spinach tend to bolt (produce seed) and become bitter in response to hot summer weather. So now is the time to replant and take advantage of the shorter cooler days to come. Broccoli, cauliflower and Brussels sprouts are also well adapted to fall gardening; they produce best quality and flavor when they can mature during cooler weather. For many crops, insect and disease pests may not pose as much of a problem in fall plantings.

However, it is hard to know just how many weeks of good, fall, growing weather we will have in any given year. In much of Indiana, the first 32 degrees F frost date usually falls sometime in mid to late October, but it can also come in September. Look up the fall frost dates for your area at http://www.crh.noaa.gov/images/ind/freezedates_32.png.

Use fast-maturing cultivars whenever possible to ensure a harvest before killing frost occurs. Check with your local garden centers for available plants and seed. Or if you order by mail, keep the fall garden in mind while planning your spring order for garden seeds. Seeds of the cultivars you want may be out of stock by late summer.

Photo of a Fall Vegetable Garden

Fall Vegetable Garden

To prepare your garden for a fall crop, remove previous crop residue and weeds. If needed, till or spade about 6-8 inches deep to loosen soil. If the soil has been heavily cropped, you may need to apply additional fertilizer, but you likely can get by with just a light application of nitrogen unless a soil test indicates the need for additional potassium and phosphorus.

Late summer plantings often suffer from hot soil and/or lack of water. Soils may form a hard crust over the seeds, which can interfere with seed germination, particularly in heavy soils. Use a light mulch of compost or vermiculite over the seed row to prevent a crust from forming. Seeds of lettuce, peas and spinach, in particular, do not germinate well when soil is 85 degrees F and above – shading over the seed row may help.

Do not allow seedlings and young transplants to dry out excessively. Apply 1 inch of water in a single application each week to thoroughly moisten the soil, if rainfall is inadequate. Young seedlings may need to be watered more often during the first week or two of growth. Young transplants may benefit from light shade for the first few days until their new roots become established.

Indiana often enjoys several more weeks of good growing after the first frost. You can extend the fall growing season for tender crops by protecting them through early, light frosts. Cover growing beds with blankets or throw-cloths supported by stakes or wire to prevent mechanical injury to the plants. Individual plants can be protected with such items as paper caps, milk jugs, plastic water-holding walls and other commercially available products.

Some vegetables that are already growing in the garden will continue to produce well into the fall but are damaged by even a light frost. Some crops are considered semi-hardy and will withstand a light frost without protection. Others are hardy enough to withstand several hard frosts. Many common vegetables are listed below, according to their frost tolerance.

Cold Temperature Tolerance of Vegetables

Tender Vegetables Semi-Hardy Vegetables Hardy Vegetables
(damaged by light frost) (tolerates light frost) (tolerates hard frost)
Beans Beets Broccoli
Cucumber Carrot Brussels Sprouts
Eggplant Cauliflower Cabbage
Muskmelon Celery Collards
New Zealand Spinach Chard Kale
Okra Chinese Cabbage Kohlrabi
Pepper Endive Mustard Greens
Pumpkin Lettuce Onion
Squash Parsnip Parsley
Sweet Corn Potato Peas
Sweet Potato Salsify Radish
Tomato Spinach
Watermelon Turnip

 

 


Share This Article
Disclaimer: Reference to products is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in these articles assumes full responsibility for their use in accordance with current directions of the manufacturer.
Indiana Yard and Garden – Purdue Consumer Horticulture - Horticulture & Landscape Architecture, 625 Agriculture Mall, West Lafayette, IN 47907

© 2021 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained 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.edu.