Before planting it is a good idea to find your USDA Zone info to figure out your garden 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 Riverbank it's a good idea to figure out when it's a good idea to plant lavender cotton.

Planting Calendar for Lavender Cotton

Frost tolerance for lavender cotton:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant lavender cotton quite a bit earlier in the year because they are very cold tolerant.

The earliest that you can plant lavender cotton in Riverbank 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 lavender cotton and expect a good harvest is probably October. If you wait any later than that and your lavender cotton may not have a chance to fully mature. Starting your lavender cotton indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Riverbank is not always accurate the actual date of last frost will vary from year to year. Half of the time in Riverbank there is a last frost after February 15 so always be ready to protect your lavender cotton in the event of one of those late frosts.

USDA Zone Info for Riverbank

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 Riverbank

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