When to Plant Impatiens in Laconia, NH

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.

The first opportunity to plant impatiens in Laconia can be estimated by reviewing the USDA zone info.


Planting Calendar for Impatiens

Frost tolerance for impatiens: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Since impatiens do not do well in cold weather you have to wait until after the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant impatiens
Possibly ok, but a risky time to plant impatiens
Probably not a good time to plant impatiens

The earliest that you can plant impatiens in Laconia 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. If you wait any later than that and your impatiens may not have a chance to fully mature. You can get started a little bit earlier by starting your impatiens indoors.

Last Frost Date

In Laconia the average date of last frost happens on April 15. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Laconia may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Laconia there is a last frost after April 15 so be sure to be ready to cover your impatiens in the event of a late frost.

USDA Zone Info for Laconia

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 Laconia

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