When to Plant Poppies in Alamosa, CO

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's the best time to plant poppies is to examine the USDA zone info for Alamosa.

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Planting Calendar for Poppies

Frost tolerance for poppies: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

You can plant poppies just a bit earlier in the year because they are moderately cold tolerant.

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

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

The last month that you can plant poppies and expect a good harvest is probably August. Any later than that and your poppies may not have a chance to fully mature. You can get started a few weeks earlier by starting your poppies indoors.

Last Frost Date

The average date of last frost is May 15 in Alamosa. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Alamosa is not always accurate the actual date of last frost is different every year. Since half of the time in Alamosa you get a frost after May 15 be ready to protect your poppies if you have a surprise late frost.

USDA Zone Info for Alamosa

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Alamosa

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