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.

A way of estimating when it's possible to plant gayfeather is to look at the USDA zone info for Marshall.

Planting Calendar for Gayfeather

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

Gayfeather tend to make it in pretty solid cold which means that you can plant them much earlier in the year than other plants that might not handle the cold.

The earliest that you can plant gayfeather in Marshall 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. Starting your gayfeather indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Marshall is just an average and the actual date of last frost is different every year. Half of the time in Marshall you get surprised by a frost after April 15 so just be sure to be ready to protect your gayfeather if you have a late frost.

USDA Zone Info for Marshall

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Marshall

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