The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Alpine you can determine when it's the best time to plant missouri primrose by referring to the USDA zone info.

Planting Calendar for Missouri Primrose

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

You can plant missouri primrose a little earlier in the year because they are moderately cold tolerant.

The earliest that you can plant missouri primrose in Alpine 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 missouri primrose and expect a good harvest is probably September. If you wait any later than that and your missouri primrose may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your missouri primrose indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Alpine. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Alpine is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Alpine it frosts late in the year after April 15 so make sure that you are prepared to cover your missouri primrose in the event of a late frost.

USDA Zone Info for Alpine

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Alpine

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