When to Plant Cleome in Stockton, CA

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's the best time to plant cleome in Stockton 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 when the weather gets warmer.

Cleome are not cold tolerant which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
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A good time to plant cleome
Possibly ok, but a risky time to plant cleome
Probably not a good time to plant cleome

The earliest that you can plant cleome in Stockton 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 really do well. Starting your cleome indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Stockton is an average the actual date of last frost will vary from year to year. Since half of the time in Stockton last frost occurs after February 15 be ready to protect your cleome if you have one of those late frosts.

USDA Zone Info for Stockton

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 Low25°F
Highest Expected Low30°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 Stockton

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