When can I plant Bacopa in Zone 4a

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You will be able to estimate when it's the best time to plant bacopa by using the USDA zone info for Zone 4a.


Planting Calendar for Bacopa

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

You can plant bacopa just a tiny bit earlier in the year because they do ok in moderate cold.

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

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

Last Frost Date

In Zone 4a the average date of last frost happens on May 15. It might get as low as -30°F during the coldest months of winter.

It's important to remember that USDA zone info for Zone 4a is an average and our actual date of last frost will vary from year to year. Half of the time in Zone 4a last frost occurs after May 15 so be sure to be ready to protect your bacopa if we have a 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.