One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. 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 Gillette should be read to determine when to plant strawflowers.

Planting Calendar for Strawflowers

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

Since strawflowers are barely cold tolerant you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant strawflowers in Gillette is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant strawflowers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your strawflowers may not have a chance to fully mature. If you are starting your strawflowers indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Gillette the average date of last frost happens on May 15. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Gillette is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Gillette there is a last frost after May 15 so just be sure to be ready to cover your strawflowers in the event of a surprise late frost.

USDA Zone Info for Gillette

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 Gillette

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