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

In Atherton you can estimate when it's possible to plant bacopa by referring to the USDA zone info.

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 get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant bacopa in Atherton is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant bacopa and expect a good harvest is probably September. You probably don't want to wait any later than that or else your bacopa may not have a chance to fully mature. Starting your bacopa indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Atherton the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Atherton is an average the actual date of last frost is different every year. Since half of the time in Atherton there is a last frost after February 15 be ready to cover your bacopa if you have a late frost.

USDA Zone Info for Atherton

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Atherton

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