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.

The USDA zone info for Bradley can be read to determine when it's a good idea to plant pyrethrum.

Planting Calendar for Pyrethrum

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

Pyrethrum do well in moderate cold which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant pyrethrum in Bradley 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 pyrethrum and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pyrethrum may not have a chance to fully mature. You can get started a little bit earlier by starting your pyrethrum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Bradley. In the coldest months of winter you should expect an average low temperature of -15°F.

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

USDA Zone Info for Bradley

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 Bradley

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