When can I plant Stoneseed in Zone 4b

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.

It's a good idea to estimate when to plant stoneseed by reviewing the USDA zone info for Zone 4b.


Planting Calendar for Stoneseed

Frost tolerance for stoneseed: Not tolerant of frost.
When you should plant them: After all chance of frost has passed.

It's probably a bad idea to plant stoneseed until after the last frost because they require warm weather.

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

The earliest that you can plant stoneseed in Zone 4b 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 stoneseed and expect a good harvest is probably August. If you wait any later than that and your stoneseed may not have a chance to grow to maturity. You can get started a little bit earlier by starting your stoneseed indoors.

Last Frost Date

In Zone 4b the average date of last frost happens on May 15. We can expect an average low temperature of -25°F in the coldest months of winter.

Remember that USDA zone info for Zone 4b is an average and our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 4b we get surprised by a frost after May 15 be ready to cover your stoneseed in the event of a late frost.

USDA Zone Info for Zone 4b

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 Zone 4b

You may be interested in our other planting guides for Zone 4b.