The USDA Zone info is a great tool for gardeners to help us figure out 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.

It's possible to determine when it's the best time to plant bidens by referring to the USDA zone info for Glen Ridge.

Planting Calendar for Bidens

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

Bidens require warm weather which tells us that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant bidens in Glen Ridge 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. If you wait any later than that and your bidens may not have a chance to fully mature. Starting your bidens indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Glen Ridge. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Glen Ridge is just an average the actual date of last frost changes from year to year. Since half of the time in Glen Ridge it frosts late in the year after April 15 be ready to cover your bidens in the event of a late frost.

USDA Zone Info for Glen Ridge

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Glen Ridge

You may be interested in your other planting guides for Glen Ridge.