When to Plant Snapdragons in Zone 4b

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Zone 4b you can estimate when it's the best time to plant snapdragons by using the USDA zone info.


Planting Calendar for Snapdragons

Frost tolerance for snapdragons: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Snapdragons are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other frost tender plants.

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

The earliest that you can plant snapdragons in Zone 4b is March. However, you really should wait until April if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is May 15 in Zone 4b. In the coldest months of winter you should expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Zone 4b may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Zone 4b there is a last frost after May 15 be ready to protect your snapdragons in the event of one of those late frosts.

USDA Zone Info for Zone 4b

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Zone 4b

You may be interested in your other planting guides for Zone 4b.