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Extension

Dividing Perennials

Aug 3, 2026

Learn when and how to divide perennials to encourage healthy growth, improve flowering and keep mature plants vigorous in the landscape.

Handling Spider Mites

Aug 3, 2026

Learn how to identify, prevent and control spider mites on indoor and outdoor plants with simple management tips to reduce damage and protect plant health.

That’s Not Peach Jam: Diagnosing Gummosis

Aug 3, 2026

Learn how to identify gummosis in peach trees, distinguish peach tree borers from Cytospora canker and keep trees healthy for future harvests.

Summer Heat and Bitter Cucumbers

Jul 27, 2026

Learn why cucumbers turn bitter in hot weather and how watering, mulching and burpless varieties can help improve flavor and reduce stress.

Brown Patch Disease of Cool-Season Grasses

Jul 27, 2026

Learn how to identify, prevent and manage brown patch disease in cool-season lawns with proper watering, mowing, fertilization and fungicide use.

The Summer Shed: Understanding Cladoptosis in Trees

Jul 27, 2026

Learn why trees naturally shed leaves and twigs during summer, how to identify cladoptosis, and when falling branches may signal drought, disease or damage.

Mid-to Late June Horticulture Tips

Jun 19, 2026

Learn more about the Mid to Late June 2026 Horticulture tips such as blooms in the garden, spider mites, fruiting vegetables that aren't producing, blossom end rot and fall vegetables.

Garden Tips for Mid- to Late April

Apr 17, 2026

A comprehensive mid- to late-April gardening guide for Oklahoma covering essential tips on planting, lawn care, pest control, and maintaining trees, flowers, vegetables, and fruit crops for a healthy spring landscape.

Garden Tips for Mid- to Late March

Mar 17, 2026

February 2026 Horticulture tips: learn the steps to test your soil to get a thriving lawn and garden.

Garden Considerations After Recent Snow

Feb 5, 2026

Learn how recent snow and cold weather may affect Oklahoma landscapes and spring growth.