September
To-Do List
Now that we've had a frost, pull up all annuals, including those in the veggie garden. Pitch on the compost heap.
Cut back perennials damaged by the first frosts..
Dig up and store indoors any tender bulbs, such as gladiolus, cannas, dahlias, and caladiums, that you want to store over the winter.
Empty all pots and store indoors for the winter. In Iowa's harsh winters, even plastic containers will crack and clay pots will definitely shatter. .
If you have any newly planted trees, especially fruit trees, wrap them with a protective tree wrap now. It prevents sun scald and also prevents rabbits and rodents from nibbling the tasty bark. Remove in spring.
It's been dry so keep up with watering potted plants. Also be especially sure to water smaller evergreens and newly planted trees and shrubs. They need to go into winter at their strongest!
Perennials and strawberries do best with 1 to 4 inches of a loose, removable mulch over and/or around them. Leaves chopped by running a mower over them are perfect.
Protect roses. Mound all but rugosa roses around the base with 8 to 12 inches of compost or rich, dark soil to protect the bud union (right above the roots) from winter cold. Hybrid teas, grandiflora, and floribunda roses--the least cold hardy types--are more likely to survive the winter if you also wrap their stems in burlap and twine. Click here for more into on types of roses for Iowa.
Plant spring-blooming bulbs. Water well after planting.
Plant mums as desired. You can buy them now in full bloom.
Force bulbs now, as desired.
Fertilize cool season lawns, such as Kentucky bluegrass, ryes and fescues, to encourage good root growth. Also fertilize warm-season grasses, such as zoysia, also to prompt them to green up faster in spring.
Rake leaves as needed. Keep them off the grass--they can suffocate turf.
At the end of the month, when you won't be doing any more watering, remove garden hoses, drain, and store indoors for the winter.
For our printable monthly to-do lists and handy garden references, click here.
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