When to Plant Missouri Primrose in Hummelstown, PA

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

A way of making a decision about when to plant missouri primrose is to check out the USDA zone info for Hummelstown.


Planting Calendar for Missouri Primrose

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

Since missouri primrose are moderately cold tolerant you can plant them a little bit earlier in the year than more sensitive plants.

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

The earliest that you can plant missouri primrose in Hummelstown 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 really do well. Starting your missouri primrose indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Hummelstown the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Hummelstown may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Hummelstown there is a last frost after April 15 so just be sure to be ready to cover your missouri primrose in the event of a late frost.

USDA Zone Info for Hummelstown

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

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

Plants to Grow in Hummelstown

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