One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's the best time to plant gomphrena is to examine the USDA zone info for Grover Beach.

Planting Calendar for Gomphrena

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

Gomphrena are barely cold tolerant which tells us that you can plant them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant gomphrena in Grover Beach 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 gomphrena and expect a good harvest is probably September. If you wait any later than that and your gomphrena may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your gomphrena indoors.

Last Frost Date

The average date of last frost is January 31 in Grover Beach. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for Grover Beach is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Grover Beach there is a last frost after January 31 be ready to protect your gomphrena if you have one of those late frosts.

USDA Zone Info for Grover Beach

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°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 35°F.

Plants to Grow in Grover Beach

You may be interested in your other planting guides for Grover Beach.