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.

By referring to the USDA zone info for Petaluma you will be able to determine when it's possible to plant dichondra.

Planting Calendar for Dichondra

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

Dichondra are barely cold tolerant which tells us that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant dichondra in Petaluma 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 dichondra and expect a good harvest is probably September. If you wait any later than that and your dichondra may not have a chance to grow to maturity. If you are starting your dichondra indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Petaluma the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Petaluma is just an average the actual date of last frost will vary 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 protect your dichondra in the event of one of those late frosts.

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.