September
1st Week of September
Lawns and Perennials
- Cooler temperatures start the lawn repair/renovation season in earnest.
- Continue to cut down perennials as their flowers become spent.
2nd Week of September
Annuals, Lawns, Perennials, Shrubs, and Trees
- Push the summer annuals with water and fertilizer as they are just about finished.
- Aerating to benefit soil conditions can be done as the lawn goes into its fall growth period.
- DO NOT apply any more fertilizer on perennials for the year. DO NOT encourage any more growth.
- Transplant things you want moved.
3rd Week of September
Annuals, Lawns, Perennials, Shrubs, and Trees
- Plant cold hardy annuals such as pansies, ornamental kale, and mums. Use them to fill in underperforming spots in other annuals.
- Fall fertilizer and weed control for your lawn should be started after the 15th.
- Fall is the best time for perennial weed control. After the first hard frost is a pretty standard window of when they are actively growing and can be easily killed.
- Now is a great time to transplant peonies and iris.
- No major pruning should happen until dormancy.
4th Week of September
Annuals, Lawns, Perennials, Shrubs, and Trees
- Begin to bring in any tropical plants like hibiscus, citrus trees, and house plants. Treat with a systemic.
- Try to wrap up seeding by the 20th so plants have time to establish before freeze up.
- There is still plenty of time for sod.
- Finalize your touch up trimming.
- Begin tree planting toward the end of the month. Mulch them in and make sure they are watered.