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.

A way of getting a good idea when to plant gayfeather is to examine the USDA zone info for Howell.

Planting Calendar for Gayfeather

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

Gayfeather do well in cold which means that you can start planting them much earlier than other plants that might not handle the cold.

The earliest that you can plant gayfeather in Howell 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 gayfeather and expect a good harvest is probably September. Any later than that and your gayfeather may not have a chance to fully mature. You can get started a few weeks earlier by starting your gayfeather indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Howell. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Howell is an average and the actual date of last frost changes from year to year. Since half of the time in Howell there is a last frost after April 15 be ready to cover your gayfeather in the event of a surprise late frost.

USDA Zone Info for Howell

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Howell

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