One of the best tools that you have as gardeners to help us figure out 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.

The best time to plant cleome in San Marino should be determined by reviewing the USDA zone info.

Planting Calendar for Cleome

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

It's not a good idea to plant cleome until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant cleome in San Marino 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 cleome and expect a good harvest is probably September. Any later than that and your cleome may not have a chance to fully mature. If you are starting your cleome indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in San Marino. You can expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for San Marino is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in San Marino last frost occurs after January 31 be ready to protect your cleome if you have a surprise late frost.

USDA Zone Info for San Marino

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 San Marino

You may be interested in your other planting guides for San Marino.