The USDA Zone info is a great tool for gardeners to help us estimate 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 a good idea to determine when to plant bidens by looking at the USDA zone info for Kingston.

Planting Calendar for Bidens

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

Since bidens require warm weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant bidens in Kingston 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. You probably don't want to wait any later than that or else your bidens may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your bidens indoors.

Last Frost Date

The average date of last frost is April 15 in Kingston. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Kingston is not always accurate the actual date of last frost changes from year to year. Since half of the time in Kingston it frosts late in the year after April 15 be ready to cover your bidens if you have one of those late frosts.

USDA Zone Info for Kingston

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Kingston

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