Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when it's possible to plant bacopa is to refer to the USDA zone info for Montpelier.

Planting Calendar for Bacopa

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

Bacopa are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant bacopa in Montpelier 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. You probably don't want to wait any later than that or else your bacopa may not have a chance to really do well. You can get started a little bit earlier by starting your bacopa indoors.

Last Frost Date

The average date of last frost is May 15 in Montpelier. You should expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Montpelier is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Montpelier it frosts late in the year after May 15 so just be sure to be ready to protect your bacopa if you have one of those late frosts.

USDA Zone Info for Montpelier

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 Montpelier

You may be interested in your other planting guides for Montpelier.