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

It's a good idea to figure out when it's the best time to plant argyranthemum by looking at the USDA zone info for Loma Linda.

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 you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant argyranthemum in Loma Linda 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 argyranthemum and expect a good harvest is probably September. Any later than that and your argyranthemum may not have a chance to really do well. Starting your argyranthemum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Loma Linda the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Loma Linda is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Loma Linda there is a last frost after February 15 be ready to protect your argyranthemum in the event of one of those late frosts.

USDA Zone Info for Loma Linda

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 Loma Linda

You may be interested in your other planting guides for Loma Linda.