When can I plant Scutellaria in Zone 3b

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

In Zone 3b you can estimate when it's the best time to plant scutellaria by reviewing the USDA zone info.


Planting Calendar for Scutellaria

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

Scutellaria are not cold tolerant which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

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

The earliest that you can plant scutellaria in Zone 3b 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 scutellaria and expect a good harvest is probably August. Any later than that and your scutellaria may not have a chance to really do well. Starting your scutellaria indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 3b the average date of last frost happens on May 15. It might get as low as -35°F during the coldest months of winter.

Just be sure to remember that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 3b and it changes from year to year. Half of the time in Zone 3b last frost occurs after May 15 so make sure that you are ready to cover your scutellaria in the event of one of those late frosts.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in our other planting guides for Zone 3b.