One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant lavender cotton in Collinsville can be estimated by referring to the USDA zone info.

Planting Calendar for Lavender Cotton

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

Since lavender cotton are very cold tolerant you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant lavender cotton in Collinsville 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 lavender cotton and expect a good harvest is probably September. 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 little bit earlier.

Last Frost Date

In Collinsville the average date of last frost happens on April 15. You should expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Collinsville is not always accurate and the actual date of last frost changes from year to year. Half of the time in Collinsville it frosts late in the year after April 15 so be sure to be ready to cover your lavender cotton in the event of a surprise late frost.

USDA Zone Info for Collinsville

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Collinsville

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