When can I plant Salvia in Zone 4a

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.

A common way of getting a good idea when it's possible to plant salvia is to use the USDA zone info for Zone 4a.


Planting Calendar for Salvia

Frost tolerance for salvia: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

You can plant salvia a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

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

The earliest that you can plant salvia in Zone 4a is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant salvia and expect a good harvest is probably August. Any later than that and your salvia may not have a chance to fully mature. If you are starting your salvia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Zone 4a. In the coldest months of winter we should expect an average low temperature of -30°F.

It's important to remember that our actual date of last frost is just an average because it is based on the USDA zone info for Zone 4a and it will vary from year to year. Since half of the time in Zone 4a it frosts late in the year after May 15 be ready to protect your salvia if we have a surprise late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

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