One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

It's a good idea to determine when to plant anagallis by looking at the USDA zone info for San Ramon.

Planting Calendar for Anagallis

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

You can plant anagallis just a tiny bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant anagallis in San Ramon 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 anagallis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your anagallis may not have a chance to grow to maturity. You can get started a little bit earlier by starting your anagallis indoors.

Last Frost Date

The average date of last frost is February 15 in San Ramon. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for San Ramon is an average and the actual date of last frost will vary from year to year. Since half of the time in San Ramon you get surprised by a frost after February 15 be ready to protect your anagallis if you have one of those late frosts.

USDA Zone Info for San Ramon

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 Ramon

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