The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's the best time to plant cleome in Larkspur by using the USDA zone info.

Planting Calendar for Cleome

Frost tolerance for cleome:	Not tolerant of frost.
When to plant:	After the last frost.

Cleome require warm weather which tells us that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant cleome in Larkspur 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 cleome and expect a good harvest is probably September. You probably don't want to wait any later than that or else your cleome may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your cleome indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Larkspur. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Larkspur is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Larkspur you get surprised by a frost after February 15 be ready to cover your cleome if you have one of those late frosts.

USDA Zone Info for Larkspur

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 Larkspur

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