The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of determining when you can plant bidens is to refer to the USDA zone info for Prescott.

Planting Calendar for Bidens

Frost tolerance for bidens:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Bidens are not cold tolerant which means that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant bidens in Prescott is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant bidens and expect a good harvest is probably August. Any later than that and your bidens may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bidens indoors.

Last Frost Date

In Prescott the average date of last frost happens on March 15. It might get as low as 10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Prescott is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Prescott there is a last frost after March 15 be ready to protect your bidens in the event of one of those late frosts.

USDA Zone Info for Prescott

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Prescott

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