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

You will be able to estimate when it's a good idea to plant argyranthemum by referring to the USDA zone info for San Juan Capistrano.

Planting Calendar for Argyranthemum

Frost tolerance for argyranthemum:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since argyranthemum are not cold tolerant it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant argyranthemum in San Juan Capistrano 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 argyranthemum and expect a good harvest is probably September. If you wait any later than that and your argyranthemum may not have a chance to really do well. If you are starting your argyranthemum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In San Juan Capistrano the average date of last frost happens on January 31. You should expect an average low temperature of 30°F in the coldest months of winter.

Remember that USDA zone info for San Juan Capistrano may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in San Juan Capistrano you get a frost after January 31 be ready to protect your argyranthemum in the event of a surprise late frost.

USDA Zone Info for San Juan Capistrano

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 Juan Capistrano

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