Lawns and Landscaping for September

September is a terrific time to work on a cool season lawn. Cool season lawns consist of tall fescue, fine fescue and Kentucky blue grass. Planting, over seeding, fertilizing and aeration are jobs that need to be done this month. Most lawns are tired of the heat and low moisture conditions from the summer but with some guidance most can be re-energized.

Go Shopping! Most folks think this is the end of the gardening season, but to be honest it is perfect gardening time! You can plant all winter hardy plants, giving the roots time to establish before the ground begins to freeze. This time of year nurseries discount their stock and it a great time for bargains.
Plant fall blooming mums. Without a doubt, Chrysanthemums are great for brilliant fall color. Bonus! ...if you plant them early enough to establish a decent root system, most of the hardier types will survive the winter.
Seed the lawn. Mid September to early October is the best time for seeding a lawn (Early spring is the second best!). Lawn grass germinates at the greatest rate when daytime temperatures are near 60° (15° Cel). and when soil is moist but not soggy.
Divide your perennials. Most perennial plants (except those that are currently blooming) will divide and transplant well during this cool, moist season. Do not transplant past October for the best results.
Plant spring bulbs. Late September through October is the best time for planting your favorite Tulips, Daffodils, Crocus, and more. They can be planted until the ground is hard with ice.
Remove diseased foliage. Any diseased or insect infested foliage should be burned. (not composted) Although proper composting should kill most diseases, it is not advisable to add them to your own compost bin. Contact your county recycling center for instructions on how to properly dispose of non-compostable vegetation.
Remove leaves from lawn. We have always done it- but do you know why? Okay, it does look good, but it also helps prevent Snow Mold, a common fungus that often attacks and kills grass that is smothered by moist deciduous leaves.
Winter mulch marginal plants. Some plants will benefit from some extra winter insulation such as clean straw or leaves. For best results and least amount of rodents and mold, wait until the ground has started to freeze.
Put the right plant in the right place -- with the right soil, moisture, and sun or shade conditions, your plants will be healthier, and many will not need irrigation.
For a quick mulch, cut the plants in your vegetable and flower gardens, but leave the material in the garden to prevent erosion and provide organic matter for the soil. Use hand pruners, hedge shears, or a sickle to chop the plants into mulch-size pieces. Just be sure that the plant material has no disease or insect infestations.
Try planting ferns to fill in between and beneath shrubs, trees, grape arbors, and other shady spots. Plant in early fall for best results.
Don't retire the lawn mower when the growth of your lawn slows down this fall. As long as the grass continues to grow, it should be mowed.
Make a long-range plan to gradually convert your current landscape to the one you desire. Don't pull out any ornamental plantings until you have the time and resources to replace them.
Don't allow leaves to accumulate on the lawn. Rake them up regularly, and store in a pile for use as mulch in your garden next summer. If leaves accumulate on your lawn and become matted down by rain, they may kill the grass.
Dig new garden beds for next spring. Incorporate plenty of organic matter, such as leaves, and leave the soil rough to allow good water penetration. Freezing and thawing will break up heavy clay soils. Plant a cover crop, also called a green manure, to increase the soil's organic matter content.
Wood ashes contain phosphorous, calcium, and potassium and can be placed on the garden, flower beds, or spread on lawn, but don't overdo it. Avoid using wood ashes on acid-loving plants, such as azaleas and blueberries, because ashes raise the soil pH.
When landscaping for energy efficiency, choose evergreens for the north and northwest sides of the house where they will block winter winds without limiting winter sun. Block early morning and late afternoon summer sun by planting deciduous trees to the east and west of the house, including the southeast and southwest corners. Don't plant shade trees to the direct south of the house; the summer sun is so high in the sky it will shine onto the house over all but the tallest trees, and the trees would block cooling, southernly breezes.
Early autumn is the best time of the year for the sowing of grass seed. Grass sown in spring is often killed by hot, dry, summer weather. For more vigorous growth, spread a very thin mulch of clean straw over newly seeded areas. The straw shades delicate seedlings from the hot sun and helps preserve moisture in the soil, yet lets enough light through for germination. By the time cold weather arrives, the grass is fairly well established and ready to grow and thicken early the following spring.
Healthy green grass outside the windows of your home can cool the breeze off hot pavement by as much as 10 degrees F.
Fall is usually cool and moist and a good time to plant trees and shrubs. Research has shown that roots will continue to grow until the soil freezes. This is true for both evergreens and deciduous plants.
Lawns should be fertilized in late September or early October. Consult your local Extension agent for the most recent recommendations.

"Always remember the beauty of the garden, for there is peace."
-- Author Unknown

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