Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. 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 Walnut can be read to determine when 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 much earlier in the year because they do well in cold.

The earliest that you can plant lavender cotton in Walnut 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. Any later than that and your lavender cotton may not have a chance to fully mature. If you are starting your lavender cotton indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Walnut the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Walnut may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Walnut there is a last frost after January 31 so make sure that you are ready to cover your lavender cotton in the event of a surprise late frost.

USDA Zone Info for Walnut

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 Walnut

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