One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when to plant bacopa is to consult the USDA zone info for Washington.

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.

Since bacopa do ok in moderate cold you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bacopa in Washington is March. However, you really should wait until April 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. Any later than that and your bacopa may not have a chance to fully mature. Starting your bacopa indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Washington. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Washington is just an average the actual date of last frost is different every year. Since half of the time in Washington you get a frost after March 15 be ready to cover your bacopa in the event of a surprise late frost.

USDA Zone Info for Washington

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Washington

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