The USDA Zone info is a great tool for gardeners to help us estimate 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 possible to estimate when it's a good idea to plant calla lily by using the USDA zone info for Half Moon Bay.

Planting Calendar for Calla Lily

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

Calla Lily require warm weather which means that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant calla lily in Half Moon Bay 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 calla lily and expect a good harvest is probably September. You probably don't want to wait any later than that or else your calla lily may not have a chance to grow to maturity. Starting your calla lily indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Half Moon Bay. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Half Moon Bay is just an average the actual date of last frost changes from year to year. Since half of the time in Half Moon Bay last frost occurs after January 31 be ready to cover your calla lily in the event of one of those late frosts.

USDA Zone Info for Half Moon Bay

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 Half Moon Bay

You may be interested in your other planting guides for Half Moon Bay.