Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant cuphea in Sunnyvale can be figured out by reviewing the USDA zone info.

Planting Calendar for Cuphea

Frost tolerance for cuphea:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since cuphea require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant cuphea in Sunnyvale 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 cuphea and expect a good harvest is probably September. If you wait any later than that and your cuphea may not have a chance to grow to maturity. Starting your cuphea indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Sunnyvale. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Sunnyvale is not always accurate the actual date of last frost will vary from year to year. Half of the time in Sunnyvale there is a last frost after February 15 so just be sure to be ready to protect your cuphea in the event of a late frost.

USDA Zone Info for Sunnyvale

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 Sunnyvale

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