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 using the USDA zone info for Lowell it's a good idea to determine when it's a good idea to plant gayfeather.

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 tells us that you can get them planted much earlier than other frost tender plants.

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

Last Frost Date

On average the last frost is on April 15 in Lowell. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Lowell may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Lowell you get surprised by a frost after April 15 so always be ready to protect your gayfeather in the event of a surprise late frost.

USDA Zone Info for Lowell

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 Lowell

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