September Gardening Calendar

Wondering What You Should Be Doing In Your Garden?

Below is a calendar of key things you can be doing in your garden during the month of September.

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Approximate Timing & September Gardening Activities:

Early September

Closeup of purple bearded iris growing in gardenMid-September

Late September

  • Landscape clean up and fertilization* of trees and shrubs. 
  • Plant select seeds indoors for your fall/winter Tasty Garden.
  • Winter Lawn—begin planting ryegrass seed once nighttime temperatures are a consistent 65° F.

* = Fertilize once temperatures are below 90° F. However, you can still support your plants during heatwaves with vital nutrients

Click the button below to download a PDF version of this calendar, for easy printing or larger viewing...

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seedlings in biodegradeable pots in seed trays

September Planting Calendar

Plant the following edibles from 9/1 - 9/14:

  • Seeds: Snap beans, bok choy, broccoli, Brussel sprouts, cabbage, Chinese cabbage, carrots, cauliflower, celery, chard, collard greens, cucumbers, and endive
  • Transplants: Brussel sprouts, and cauliflower

Plant the following edibles from 9/15 - 9/30:

  • Seeds: Beets, bok choy, broccoli, Brussel sprouts, cabbage, Chinese cabbage, carrots, cauliflower, celery, chard, collard greens, cucumbers, endive, kale, kohlrabi, head and leaf lettuces, leek, mustard, green onions, parsnips, peas, radishes, rutabagas, spinach, and turnips
  • Transplants: Broccoli, Brussel sprouts, cabbage, Chinese cabbage, cauliflower, celery, chard, and head and leaf lettuces

To get the most out of your garden harvest, visit your local SummerWinds Nursery and let our Trusted Garden Advisors help you select the best vegetables and the right time to plant.  For additional tips, download the Maricopa County Garden Planting Calendar for Annual Fruits and Vegetables.

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Want More?  Register for one of our FREE Learn ‘n Grow classes online!

Contact your local SummerWinds Nursery to learn more.

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