The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Coffeyville it's possible to estimate when to plant asters.

Planting Calendar for Asters

Frost tolerance for asters:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Asters do well in moderate cold which tells us that you can start planting them earlier than more sensitive plants.

The earliest that you can plant asters in Coffeyville 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 asters and expect a good harvest is probably September. If you wait any later than that and your asters may not have a chance to fully mature. Starting your asters indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Coffeyville. It might get as low as -5°F during the coldest months of winter.

Keep in mind that USDA zone info for Coffeyville is just an average and the actual date of last frost is different every year. Since half of the time in Coffeyville last frost occurs after April 15 be ready to protect your asters if you have one of those late frosts.

USDA Zone Info for Coffeyville

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 Coffeyville

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