Ornamentals, Trees, Shrubs
If rainfall has been deficient, water lawns, trees, and shrubs, especially the broadleaf and narrow leaf evergreens. Check moisture in protected areas or raised planters.
Generally, most pruning of trees and shrubs is best done in late winter. Spring blooming shrubs should be pruned after blooming. Don’t prune unless there is a reason to do so. See OSU Pub. 6409 – Pruning Ornamental Trees and Shrubs.
Use horticultural oil spray in dormant doses to control overwintering insects on deciduous trees and shrubs if not treated in November or December. Scale, mites, galls, overwintering aphids, and other insects can be a serious problem of many woody ornamental and fruit plants. Dormant oil sprays should be applied when the temperature is above 40 degrees F. in late fall and winter. Do not use “dormant” oils on evergreens. See 7306 – Ornamental and Lawn Pest Control.
Mow cool season grasses at 2 to 3 inches high at a mower height of 2 1/2 inches. Mowing should be frequent enough to remove not more than one-third of the leaf blade per cutting.
Water turf if rainfall has been deficient. Check moisture in protected areas.
Make plans for the vegetable garden, plant types, location, and planting dates. See complete information about the what, when and how to plant vegetables in Oklahoma in our vegetable information section of our website.
Sharpen, paint, and repair gardening tools and equipment (mowers, edgers, sprayers, dusters, etc.) Balance cutting blades on mowers and edgers.
Check irrigation lines, hoses, and sprinklers and replace worn or broken parts.
Check supplies of fungicides, insecticides, and herbicides. Secure a copy of current recommendations and post them in a convenient place. Also see OSU Pub. 7450 – Safe Use of Pesticides in the Home and Garden.