Quantcast
Planting Calendar for Avon, CO | Almanac.com
For daily wit & wisdom, sign up for the Almanac Daily newsletter.

Planting Calendar for Avon, CO

Enter your zip code or postal code above.

The planting calendar below tells you when to plant in the SPRING and also plant in the FALL, based on your zip code or postal code.

Spring Planting Calendar

Our spring planting calendar starts with the very first dates that you can plant (based on the last spring frost). But if you've missed these dates, no worries! This is why we've added "last planting dates" to our spring calendar; this is meant to help new gardeners understand that if they missed the first spring planting window, they could still get crops in the ground.

In fact, many crops with short maturity times (such as radishes) can be succession planted all the way through the summer in northern areas. However, note that some cool-seasons crops such as kale and lettuce do not grow well in hot temperatures, which can cause bolting issues.  For some gardeners, especially in the South, a break to avoid summer heat is needed, but they can start once the heat has passed. 

The dates provided are based on the number of weeks before or after frost, so we can provide a unique calendar to every user in the country. Thus, several crops (especially similar crops) may appear to have the same date. Kale and lettuce, for example, or dates for starting seeds, like broccoli and cabbage. 

Fall Planting Calendar

When we say "fall," we really mean planting in summer in time for a fall harvest. Think of this as a second summer! It's easy to keep the crops going if you've already prepared the soil! 

Many crops that would be started indoors for a spring crop can just be plunked into the soil directly for a fall crop. Not only is the soil already warm but also there are less pests and it tends to be rainier so you don't need to water as often. Some fall vegetables need to be harvested by the first frost, but many are frost-tolerant and even taste better after a kiss of fall frost!

See each plant's individual Growing Guide for more specific planting, plant care, and harvesting information.

Specifically, on the charts, there are different columns labeled as follows:

  1. Start Seeds Indoors: When to sow seeds indoors to get an early start on the season.
  2. Plant Seedlings Outdoors: When to put small seedlings that you grew indoors (OR starter plants that you bought at a garden nursery) in the outdoor soil.
  3. Start Seeds Outdoors: When to plant seeds directly into the outdoor soil.
  4. Last Date to Plant: You may plant any time from the "start seeds" dates until this "last date." Don't wait any longer, or the crop won't have time to get to harvest before fall/winter frosts.

The "Moon Dates" indicate the best planting dates based on Moon phases. You can learn more about this age-old technique below.

When N/A appears in the chart, that starting method is typically not recommended, although it is likely still possible. 

Use the icon below for the best print or email format.

Print Friendly and PDF

Planting Dates for Spring

On average, your last spring frost occurs on June 28 (at VAIL, CO climate station, elevation 8303 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds OutdoorsLast Date to Plant
ArugulaFrost May 3-17
Moon May 7-17
Frost Jun 7-21
Moon Jun 7-21
Frost May 31-Jun 7
Moon Jun 6-7
Aug 6
AsparagusN/AN/AFrost Jun 14-28
Moon Jun 22-28
Jun 28
BasilFrost May 17-31
Moon May 17-23
Frost Jul 12-26
Moon Jul 12-21
Frost Jul 12-26
Moon Jul 12-21
Jul 23
BeetsN/AFrost Jun 14-28
Moon Jun 22-28
Frost May 31-Jun 7
Moon May 31-Jun 5
Jul 12
Bell PeppersFrost Apr 19-May 3
Moon Apr 19-23
Frost Jul 12-19
Moon Jul 12-19
N/AJun 11
Bok ChoyFrost May 17-31
Moon May 17-23
Frost Jul 12-19
Moon Jul 12-19
Frost Jul 12-19
Moon Jul 12-19
Aug 9
BroccoliFrost May 3-17
Moon May 7-17
Frost Jun 14-28
Moon Jun 14-21
Frost May 31-Jun 7
Moon Jun 6-7
Jul 2
Brussels SproutsFrost May 17-31
Moon May 17-23
Frost Jun 14-28
Moon Jun 14-21
Frost May 31-Jun 7
Moon Jun 6-7
May 28
CabbageFrost May 3-17
Moon May 7-17
Frost Jun 14-28
Moon Jun 14-21
Frost May 31-Jun 7
Moon Jun 6-7
May 21
CantaloupesFrost Jun 7-21
Moon Jun 7-21
Frost Jun 28-Jul 12
Moon Jul 5-12
Frost Jul 5-12
Moon Jul 5-12
May 28
CarrotsN/AN/AFrost May 31-Jun 14
Moon May 31-Jun 5
Jun 25
CauliflowerFrost May 17-31
Moon May 17-23
Frost Jun 21-Jul 5
Moon Jun 21
N/AJun 25
CeleryFrost Apr 5-19
Moon Apr 8-19
Frost Jul 5-19
Moon Jul 5-19
Frost Jun 28
Jun 25
ChivesFrost May 3-17
Moon May 7-17
Frost Jun 7-14
Moon Jun 7-14
Frost Jun 7-14
Moon Jun 7-14
Jul 9
Cilantro (Coriander)N/AN/AFrost Jun 28-Jul 12
Moon Jul 5-12
Jul 19
CollardsFrost May 17-31
Moon May 17-23
Frost Jun 14-28
Moon Jun 14-21
Frost Jun 7-14
Moon Jun 7-14
Jun 25
CucumbersFrost Jun 7-14
Moon Jun 7-14
Frost Jul 5-19
Moon Jul 5-19
Frost Jul 12-19
Moon Jul 12-19
Jun 25
DillN/AN/AFrost Jun 21-Jul 12
Moon Jun 21, Jul 6-12
Jul 9
Dry BeansN/AN/AFrost Jul 12-19
Moon Jul 12-19
May 28
EggplantsFrost May 3-17
Moon May 7-17
Frost Jul 12-19
Moon Jul 12-19
N/AJun 25
Fava BeansN/AN/AFrost May 31-Jun 7
Moon Jun 6-7
Jul 12
FennelFrost May 17-31
Moon May 17-23
Frost Jul 5-12
Moon Jul 5-12
Frost Jun 28-Jul 12
Moon Jul 5-12
Jun 18
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Jul 5-26
Moon Jul 5-21
Jun 25
Honeydew MelonsFrost Jun 7-14
Moon Jun 7-14
Frost Jul 12-19
Moon Jul 12-19
Frost Jul 12-19
Moon Jul 12-19
Jun 4
Jalapeño PeppersFrost Apr 19-May 3
Moon Apr 19-23
Frost Jul 12-19
Moon Jul 12-19
N/A
KaleFrost May 3-17
Moon May 7-17
Frost Jun 14-28
Moon Jun 14-21
Frost May 31-Jun 7
Moon Jun 6-7
Jul 12
KohlrabiFrost May 17-31
Moon May 17-23
Frost Jun 7-14
Moon Jun 7-14
Frost May 31-Jun 7
Moon Jun 6-7
Jul 12
LeeksFrost Apr 19-May 3
Moon Apr 19-23
Frost Jun 7-21
Moon Jun 7-21
N/AMay 21
LettuceFrost May 17-31
Moon May 17-23
Frost Jun 7-14
Moon Jun 7-14
Frost May 31-Jun 7
Moon Jun 6-7
Jul 12
Mustard GreensN/AN/AN/A
OkraFrost May 31-Jun 14
Moon Jun 6-14
Frost Jul 12-19
Moon Jul 12-19
Frost Jul 12-26
Moon Jul 12-21
Jun 25
OnionsN/AFrost May 31-Jun 14
Moon May 31-Jun 5
N/AMay 28
OreganoFrost Apr 19-May 17
Moon Apr 19-23, May 7-17
Frost Jul 5-19
Moon Jul 5-19
N/AJun 25
ParsleyFrost Apr 19-May 3
Moon Apr 19-23
Frost Jul 5-19
Moon Jul 5-19
Frost May 31-Jul 5
Moon Jun 6-21
Jun 18
ParsnipsN/AN/AFrost May 31-Jun 7
Moon May 31-Jun 5
May 28
PeasN/AN/AFrost May 31-Jun 7
Moon Jun 6-7
Jul 12
PotatoesN/AN/AFrost May 31-Jun 14
Moon May 31-Jun 5
Jun 25
PumpkinsFrost Jun 7-21
Moon Jun 7-21
Frost Jul 12-19
Moon Jul 12-19
Frost Jul 12-19
Moon Jul 12-19
May 21
RadishesN/AN/AFrost May 31-Jun 7
Moon May 31-Jun 5
Jul 9
RosemaryFrost Apr 5-19
Moon Apr 8-19
Frost Jul 12-19
Moon Jul 12-19
N/AJul 9
SageFrost May 3-17
Moon May 7-17
Frost Jul 5-19
Moon Jul 5-19
N/AJun 18
SalsifyN/AN/AFrost May 31-Jun 14
Moon May 31-Jun 5
May 28
SpinachFrost May 17-31
Moon May 17-23
Frost Jun 7-14
Moon Jun 7-14
Frost May 31-Jun 7
Moon Jun 6-7
Jul 12
Sweet CornN/AN/AFrost Jul 12-26
Moon Jul 12-21
Jun 18
Sweet PotatoesN/AN/AFrost Jul 12-26
Moon Jul 22-26
May 21
Swiss ChardFrost May 17-31
Moon May 17-23
Frost Jun 14-28
Moon Jun 14-21
Frost Jun 7-28
Moon Jun 7-21
Jul 12
ThymeFrost Apr 19-May 3
Moon Apr 19-23
Frost Jul 5-12
Moon Jul 5-12
N/AJun 11
TomatillosFrost May 17-31
Moon May 17-23
Frost Jul 12-26
Moon Jul 12-21
N/AJun 18
TomatoesFrost May 3-17
Moon May 7-17
Frost Jul 12-19
Moon Jul 12-19
N/AJun 4
TurnipsN/AN/AFrost May 31-Jun 7
Moon May 31-Jun 5
Aug 6
WatermelonsFrost Jun 7-21
Moon Jun 7-21
Frost Jul 12-19
Moon Jul 12-19
Frost Jul 5-12
Moon Jul 5-12
Jun 4
Winter SquashFrost Jun 7-14
Moon Jun 7-14
Frost Jul 5-19
Moon Jul 5-19
Frost Jul 12-19
Moon Jul 12-19
May 14
Zucchini (Summer Squash)Frost Jun 7-14
Moon Jun 7-14
Frost Jul 5-19
Moon Jul 5-19
Frost Jul 12-19
Moon Jul 12-19
Jul 2

Planting Dates for Fall

On average, your first fall frost occurs on September 3 (at VAIL, CO climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Jul 16-Aug 20
Moon Jul 16-21, Aug 4-19
N/A40Frost-hardy
BeetsFrost Jun 11-Jul 9
Moon Jun 22-Jul 4
N/A50Frost-tolerant
Bok ChoyFrost Jun 25-Jul 16
Moon Jul 5-16
N/A50Frost-tolerant
BroccoliFrost Jun 4-11
Moon Jun 6-11
Frost Jun 25-Jul 9
Moon Jul 5-9
60Frost-tolerant
Brussels SproutsFrost May 14-28
Moon May 14-23
N/A100Frost-hardy
CabbageFrost Jun 4-11
Moon Jun 6-11
Frost Jun 25-Jul 2
90Frost-tolerant
CarrotsFrost Jun 18-25
Moon Jun 22-25
N/A70Frost-tolerant
CauliflowerFrost May 28-Jun 4
Frost Jun 11-18
Moon Jun 11-18
75Frost-tolerant
ChivesFrost Jun 11-Jul 9
Moon Jun 11-21, Jul 5-9
N/A70Frost-tolerant
FennelFrost Jun 4-18
Moon Jun 6-18
N/A80Tender
GarlicFrost Sep 17-Oct 1
Moon Sep 18-Oct 1
N/A120Frost-hardy
Green BeansFrost Jun 18-Jul 2
Moon Jun 18-21
N/A55Tender
KaleFrost Jun 25-Jul 9
Moon Jul 5-9
N/A60Frost-hardy
KohlrabiFrost Jul 2-23
Moon Jul 5-21
N/A45Frost-tolerant
LettuceFrost Jun 25-Jul 9
Moon Jul 5-9
N/A60Frost-tolerant
Mustard GreensFrost Jul 2-23
Moon Jul 5-21
N/A45Tender
PeasFrost Jun 25-Jul 9
Moon Jul 5-9
N/A55Tender
RadishesFrost Jul 23-Aug 6
Moon Jul 23-Aug 3
N/A25Frost-tolerant
SpinachFrost Jul 16-Aug 6
Moon Jul 16-21, Aug 4-6
N/A30Frost-hardy
Swiss ChardFrost Jun 25-Jul 9
Moon Jul 5-9
N/A60Frost-tolerant
TurnipsFrost Jul 2-16
Moon Jul 2-4
N/A50Frost-tolerant
The Old Farmer's Store