Gardening tasks for November – High Plains Journal




By Nell Reed

Extension Master Gardener

Lawn: In the first week, fertilize cool season grasses again. Continue mowing cool-season lawns on a regular basis. Remove leaves from cool-season grasses or mow with a mulching mower. Continue to control broadleaf weeds in well-established warm or cool-season lawns with a post-emergent broadleaf weed killer. More information about lawn care can be found in OSU Fact sheets, HL6420 and HLA-6421 that are available online at http://factsheets.okstate.edu/. Now is a good time for a soil test to correct nutrient deficiencies before winter

Trees and Shrubs: Container-grown shade trees and pines are most successfully planted in the fall. Broadleaf evergreens or bare-root-plants are best planted in the spring. Nov. 15 to March 15 is the best time to prune most trees and shrubs (HLA-6409). Scale insects can be controlled when the temperature is above 40 degrees in late fall and winter. Do not use “dormant” oils on evergreens ((EPP- 7306).

Yard Cleanup: Dispose of pine cones of pines infested with Diplodia and Dothistroma. Prune out dead tips. (EPP-7618). Compost annual debris and leaves, but do not compost diseased plant parts. Prepare the landscape for winter. Remove diseased plant from the landscape to reduce disease problems next year.

Tool Cleanup: Drain gasoline from power equipment or use fuel stabilizer before winter storage. Drain and store water hoses and wrap hydrants. Clean up all tools. Coat metal surfaces with a thin film of oil to prevent rust.

For more information, please visit our website at http://oces.okstate.edu/oklahoma or contact the OSU Extension Service at 405-713-1125.



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