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

You should be able to determine when it's the best time to plant gypsophila by referring to the USDA zone info for Pomona.

Planting Calendar for Gypsophila

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

Gypsophila are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than plants that are more sensitive to the cold.

The earliest that you can plant gypsophila in Pomona 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. If you wait any later than that and your gypsophila may not have a chance to really do well. You can get started a little bit earlier by starting your gypsophila indoors.

Last Frost Date

The average date of last frost is January 31 in Pomona. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Pomona is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Pomona you get surprised by a frost after January 31 so always be ready to protect your gypsophila in the event of one of those late frosts.

USDA Zone Info for Pomona

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Pomona

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