One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when it's the best time to plant sweet williams is to use the USDA zone info for La Palma.

Planting Calendar for Sweet Williams

Frost tolerance for sweet williams:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Sweet Williams do well in moderate cold which means that you can plant them earlier than more sensitive plants.

The earliest that you can plant sweet williams in La Palma is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant sweet williams and expect a good harvest is probably October. If you wait any later than that and your sweet williams may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your sweet williams indoors.

Last Frost Date

The average date of last frost is January 31 in La Palma. It might get as low as 35°F during the coldest months of winter.

Keep in mind that USDA zone info for La Palma is an average and the actual date of last frost is different every year. Since half of the time in La Palma it frosts late in the year after January 31 be ready to protect your sweet williams if you have a late frost.

USDA Zone Info for La Palma

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in La Palma

You may be interested in your other planting guides for La Palma.