One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant lysimachia in San Jose should be figured out by looking at the USDA zone info.

Planting Calendar for Lysimachia

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

Since lysimachia are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lysimachia in San Jose 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 lysimachia and expect a good harvest is probably October. Any later than that and your lysimachia may not have a chance to fully mature. If you are starting your lysimachia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In San Jose the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for San Jose may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in San Jose you get a frost after February 15 so make sure that you are ready to cover your lysimachia if you have a surprise late frost.

USDA Zone Info for San Jose

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 San Jose

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