One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

In Green River you can determine when to plant lavender cotton by using 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.

Lavender Cotton do well in pretty solid cold which means that you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant lavender cotton in Green River is March. However, you really should wait until April 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 August. You probably don't want to wait any later than that or else your lavender cotton may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your lavender cotton indoors.

Last Frost Date

The average date of last frost is May 15 in Green River. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Green River is not always accurate the actual date of last frost changes from year to year. Since half of the time in Green River you get a frost after May 15 be ready to protect your lavender cotton in the event of a late frost.

USDA Zone Info for Green River

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Green River

You may be interested in your other planting guides for Green River.