When can I plant Snow-in Summer in Zone 1b

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

You can determine when you can plant snow-in summer in Zone 1b by reviewing the USDA zone info.


Planting Calendar for Snow-in Summer

Frost tolerance for snow-in summer: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Since snow-in summer are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant snow-in summer
Possibly ok, but a risky time to plant snow-in summer
Probably not a good time to plant snow-in summer

The earliest that you can plant snow-in summer in Zone 1b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant snow-in summer and expect a good harvest is probably July. You probably don't want to wait any later than that or else your snow-in summer may not have a chance to fully mature. You can get started a little bit earlier by starting your snow-in summer indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1b. In the coldest months of winter we can expect an average low temperature of -55°F.

Since the USDA zone info for Zone 1b is just an average our actual date of last frost is different every year. Since half of the time in Zone 1b we get a frost after June 15 be ready to protect your snow-in summer if we have a surprise late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.