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When to Plant Gypsophila in San Jose, CA

One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for San Jose can be reffered to in order to determine when it's possible to plant gypsophila.


Planting Calendar for Gypsophila

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

Gypsophila tend to make it in a little bit of cold which means that you can plant them a little earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant gypsophila
Possibly ok, but a risky time to plant gypsophila
Probably not a good time to plant gypsophila

The earliest that you can plant gypsophila 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 gypsophila and expect a good harvest is probably October. You probably don't want to wait any later than that or else your gypsophila may not have a chance to grow to maturity. If you are starting your gypsophila indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in San Jose. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for San Jose and it can change quite a bit from year to year. Half of the time in San Jose it frosts late in the year after February 15 so just be sure to be ready to cover your gypsophila if you have a 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 Low25°F
Highest Expected Low30°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.