The USDA Zone info is a great tool for gardeners to help us figure out 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.

The best time to plant gypsophila in Petaluma should be figured out by looking at the USDA zone info.

Planting Calendar for Gypsophila

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

Since gypsophila do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant gypsophila in Petaluma 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 really do well. You can get started a couple of weeks earlier by starting your gypsophila indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Petaluma. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Petaluma is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Petaluma it frosts late in the year after February 15 so be sure to be ready to cover your gypsophila in the event of a surprise late frost.

USDA Zone Info for Petaluma

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 Petaluma

You may be interested in your other planting guides for Petaluma.