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When to Plant California Poppy in Glendive, MT

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Glendive you can estimate when it's a good idea to plant california poppy by checking out the USDA zone info.


Planting Calendar for California Poppy

Frost tolerance for california poppy: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since california poppy do ok in moderate cold you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant california poppy in Glendive is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant california poppy and expect a good harvest is probably August. If you wait any later than that and your california poppy may not have a chance to grow to maturity. If you are starting your california poppy indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Glendive. In the coldest months of winter you should expect an average low temperature of -30°F.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Glendive and it changes from year to year. Since half of the time in Glendive you get a frost after May 15 be ready to protect your california poppy in the event of one of those late frosts.

USDA Zone Info for Glendive

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Glendive

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