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.

In Pacifica you can estimate when you can plant trifolium by referring to the USDA zone info.

Planting Calendar for Trifolium

Frost tolerance for trifolium:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Trifolium can survive in some cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant trifolium in Pacifica 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 trifolium and expect a good harvest is probably September. Any later than that and your trifolium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your trifolium indoors.

Last Frost Date

On average the last frost is on January 31 in Pacifica. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for Pacifica is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Pacifica you get a frost after January 31 so be sure to be ready to protect your trifolium in the event of a surprise late frost.

USDA Zone Info for Pacifica

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 Pacifica

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