When to Plant Pea in Longmont, CO

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant pea in Longmont can be estimated by using the USDA zone info.


Planting Calendar for Pea

Frost tolerance for pea: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Pea do well in cold which tells us that you can start planting them much earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pea
Possibly ok, but a risky time to plant pea
Probably not a good time to plant pea

The earliest that you can plant pea in Longmont is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant pea and expect a good harvest is probably September. If you wait any later than that and your pea may not have a chance to grow to maturity. You can get started a little bit earlier by starting your pea indoors.

Last Frost Date

The average date of last frost is April 15 in Longmont. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Longmont is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Longmont you get surprised by a frost after April 15 be ready to protect your pea in the event of a late frost.

USDA Zone Info for Longmont

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Longmont

You may be interested in your other planting guides for Longmont.