Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Northampton you can estimate when it's a good idea to plant impatiens by reviewing the USDA zone info.

Planting Calendar for Impatiens

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

Since impatiens do not do well in cold weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant impatiens in Northampton 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 impatiens and expect a good harvest is probably August. You probably don't want to wait any later than that or else your impatiens may not have a chance to grow to maturity. Starting your impatiens indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Northampton is an average and the actual date of last frost is different every year. Since half of the time in Northampton you get a frost after April 15 be ready to cover your impatiens in the event of a late frost.

USDA Zone Info for Northampton

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 Northampton

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