405.445.7080

301 W. Reno
OKC OK. 73102

Outdoor grounds open daily 6 am – 11pm.
Crystal Bridge Closed for Renovation.
Reopens fall 2022

Monthly Horticulture Tips

Winter Gardening Tips

Oklahoma Cooperative Extension Service, Division of Agricultural Sciences and Natural Resources

Department of Horticulture & Landscape Architecture, Oklahoma State University

David Hillock, Consumer Horticulturist

Flowers

  • Apply winter mulch to protect rose bush bud unions and other perennials. Wait until after several early freezes or you will give insects a good place to winter.
  • Poinsettias must have at least six hours of bright, indirect light daily. Keep plants away from drafts. 
  • Watch for and control pests on indoor houseplants. 
  • Make sure indoor plants are receiving enough light or set up an indoor fluorescent plant light. 

Tree & Shrub

  • Light prunings of evergreens can be used for holiday decorations. Be careful with sap that can mar surfaces.

Lawn & Turf

  • Continue to mow fescue as needed at 2 inches and water during dry conditions.
  • Keep falling leaves off fescue to avoid damage to the foliage.

Fruits & Nuts

  • Cover strawberry plants with a mulch about 3-4 inches thick if plants are prone to winter injury.
  • Wait to prune fruit trees until late February or March. 

General

  • Keep all plants watered during dry conditions even though some may be dormant. Irrigate all plantings at least 24 hours before hard-freezing weather if soil is dry. 
  • Order gardening supplies for next season.
  • Now is a great time to design and make structural improvements in your garden and landscape. 
  • Send for mail-order catalogs if you are not already on their mailing lists.
  • Christmas gift ideas for the gardener might include tools, garden books, magazine subscriptions or membership to The Botanic Garden at OSU
  • Clean and fill bird feeders.
  • Till garden plots without a cover crop to further expose garden pests to harsh winter conditions.
  • Visit your county extension office to obtain gardening fact sheets for the new gardening season.
  • Join a horticulture, plant or urban forestry society and support community “greening” or “beautification” projects.
  • Review your garden records so you can correct past mistakes. Purchase a new gardening journal or calendar to keep the New Year’s gardening records.

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