Planting Calendar for Sierra Vista, AZ

On average, your last spring frost occurs on March 26 (at SIERRA VISTA, AZ climate station).
Crop Based on Frost Dates   Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
BeansN/AN/A Apr 2-23
Apr 2- 7, Apr 22-23
BeetsN/AN/A Mar 12-Apr 2
Mar 12-23
Bell Peppers Jan 15-29
Jan 24-29
Apr 9-30
Apr 22-30
N/A
Broccoli Feb 12-26
Feb 23-26
Mar 4-26
Mar 4- 9, Mar 24-26
N/A
Brussels Sprouts Feb 12-26
Feb 23-26
Feb 26-Mar 19
Feb 26-Mar 9
N/A
Cabbage Jan 29-Feb 12
Jan 29-Feb 9
Feb 26-Mar 12
Feb 26-Mar 9
N/A
Cantaloupes Feb 26-Mar 4
Feb 26-Mar 4
Apr 9-30
Apr 22-30
N/A
CarrotsN/AN/A Feb 19-Mar 4
Feb 19-22
Cauliflower Feb 12-26
Feb 23-26
Feb 26-Mar 12
Feb 26-Mar 9
N/A
Celery Jan 15-29
Jan 24-29
Apr 2-16
Apr 2- 7
N/A
Collards Feb 12-26
Feb 23-26
Feb 26-Mar 19
Feb 26-Mar 9
N/A
CornN/AN/A Mar 26-Apr 9
Mar 26-Apr 7
Cucumbers Feb 26-Mar 4
Feb 26-Mar 4
Apr 9-30
Apr 22-30
N/A
Eggplants Jan 15-29
Jan 24-29
Apr 9-30
Apr 22-30
N/A
Lettuce Feb 12-26
Feb 23-26
Mar 12-Apr 9
Mar 24-Apr 7
N/A
KohlrabiN/AN/A Feb 26-Mar 19
Feb 26-Mar 9
Leeks Jan 15-29
Jan 24-29
Feb 26-Mar 19
Feb 26-Mar 9
N/A
OkraN/AN/A Apr 9-23
Apr 22-23
OnionsN/AN/A Feb 26-Mar 19
Mar 10-19
ParsnipsN/AN/A Mar 4-26
Mar 10-23
PeasN/AN/A Feb 12-Mar 4
Feb 23-Mar 4
PotatoesN/AN/A Mar 19-Apr 9
Mar 19-23, Apr 8- 9
Pumpkins Feb 26-Mar 12
Feb 26-Mar 9
Apr 9-30
Apr 22-30
N/A
RadishesN/AN/A Jan 29-Feb 19
Feb 10-19
SpinachN/AN/A Feb 12-Mar 4
Feb 23-Mar 4
Squash (Zucchini) Feb 26-Mar 12
Feb 26-Mar 9
Apr 9-30
Apr 22-30
N/A
Sweet Potatoes Feb 26-Mar 4
Apr 9-30
Apr 9-21
N/A
Swiss Chard Feb 12-26
Feb 23-26
Mar 4-12
Mar 4- 9
N/A
Tomatoes Jan 29-Feb 12
Jan 29-Feb 9
Apr 2-23
Apr 2- 7, Apr 22-23
N/A
TurnipsN/AN/A Feb 26-Mar 19
Mar 10-19
Watermelons Feb 26-Mar 4
Feb 26-Mar 4
Apr 9-30
Apr 22-30
N/A

Find the best dates for planting vegetables and fruit in your garden! Our free planting calendar calculates the best time to start seeds indoors and outdoors, as well as when to plant young plants outside.

How to Use the Planting Calendar

Simply put, a planting calendar is a guide that tells you the best time to start planting your garden. Most planting calendars are based on frost dates, which dictate when you should start seeds and when it's safe to plant outdoors in your area. Our planting calendar is customized to your location in order to give you the most accurate information possible.

On the planting calendar below, please note:

  • The Frost Dates indicate the best planting dates based on your local average frost dates. Average frost dates are based on historical weather data and are the planting guideline used by most gardeners.
  • The Moon Dates indicate the best planting dates based on your local frost dates and Moon phases. Planting by the Moon is considered a more traditional technique.
  • The Plant Seedlings or Transplants dates indicate the best time to plant young plants outdoors. This includes plants grown from seed at home and plants bought from a nursery. Although frost dates are a good way to know approximately when to start gardening, always check a local forecast before planting outdoors!
  • When no dates appear in the chart, that starting method is not recommended for that particular plant. Some crops do best when started outdoors rather than indoors, while others prefer the opposite.
  • Click on the name of a plant to see our corresponding Growing Guide.

To plan your garden more accurately in the future, keep a record of your garden's conditions each year, including frost dates and seed-starting dates!