Garden

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Cold Frames

Cold frames are structures that provide a method for extending the growing season, allowing gardeners to begin production earlier in the spring or continue later into the fall.

Person carving a pumpkin on an outdoor picnic bench.

Pumpkin carvers can use several techniques to slow or prevent the spread of pathogens and help their jack-o’-lanterns last longer. Learn some expert tips for getting the most out of your pumpkin carvings this fall.

green tomato with a rotten spot showing blossom end rot

Problems and Solutions

Not finding the gardening or horticulture resource you need? Use the Ask Extension tool to submit your question.

Northern Corn Rootworms on sunflowers, zinnias, and dahlia flowers.

Corn Rootworm Presence in Cut Flowers

Multiple cut flower farms in Eastern South Dakota have reported corn rootworms on a variety of crops, including sunflowers, zinnias, and dahlias. Careful attention to species present, their timing, and the damage they cause can help inform integrated pest management strategies.

Examples of Wild violet, Creeping Bellflower, and Ground Ivy growing on a lawn.

Perennial Weed Control in Lawns and Turf With Fall Herbicide Applications

Early fall is great time to control perennial weeds in lawns, including Wild violet, Creeping Bellflower, Ground Ivy, and Canada Thistle. Learn some expert tips selecting the right herbicides to manage these difficult-to-control weeds this fall.

Green plant with wide, oval leaves. Pink florets are arranged in a circle at the top of the stem. An orange Monarch butterfly feeds on nectar from one of the florets.

Investigate Pollinators

Lesson about the importance of pollinators and the plants they interact with.

Yellowjacket feeding on decaying produce.

Yellowjackets: Swarming decaying produce or garbage near you

Fall is here, and if you have a garden, fruit trees, or outdoor dumpsters, you are likely to encounter yellowjackets in search of food. Learn some expert tips to avoid getting stung this fall.

Gardeners browsing a tablet computer while visiting a garden center.

Home Horticulture Resources for Gardeners

Horticulture is the branch of plant agriculture dealing with garden crops. In addition to our website, there are many horticulture resources available on the web to provide research-based information to help every gardener succeed.

Freshly harvested sweet potatoes on display at an outdoor market.

Sweet Potatoes: How to Grow It

Sweet potatoes are native to Central and South America, and their tasty orange flesh is a dietary staple in warm climates. Learn some expert tips for planting, growing, and harvesting them in this resource!

Two white flowers with green leaves. The first flower has an abnormal fused bloom.

Fasciation: What’s going on with my plant?

Fasciation is a malformation of plant parts commonly manifested as enlargement, flattening or cojoining. The abnormal growth of plants can be uniquely puzzling and beautiful at the same time.