The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 it's the best time to plant gypsophila by looking at the USDA zone info for Suisun City.

Planting Calendar for Gypsophila

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

Since gypsophila are moderately cold tolerant you can plant them a little bit earlier in the year than more sensitive plants.

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

Last Frost Date

In Suisun City the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Suisun City is just an average the actual date of last frost is different every year. Half of the time in Suisun City you get a frost after February 15 so make sure that you are ready to protect your gypsophila if you have one of those late frosts.

USDA Zone Info for Suisun City

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 Suisun City

You may be interested in your other planting guides for Suisun City.