frostdate name logo in white
frostdate name logo in white

When to Plant Snapdragons in Sun Prairie, WI

The USDA Zone info is a great tool for gardeners to help us determine 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 USDA zone info for Sun Prairie should be reviewed to figure out when it's a good idea to plant snapdragons.


Planting Calendar for Snapdragons

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

Snapdragons are moderately cold tolerant which means that you can get them planted earlier than other plants that might not handle the cold.

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 Sun Prairie is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant snapdragons and expect a good harvest is probably September. You probably don't want to wait any later than that or else your snapdragons may not have a chance to grow to maturity. If you are starting your snapdragons indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Sun Prairie. You should expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Sun Prairie and it is different every year. Half of the time in Sun Prairie you get a frost after April 15 so make sure that you are prepared to cover your snapdragons in the event of a surprise late frost.

USDA Zone Info for Sun Prairie

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Sun Prairie

You may be interested in your other planting guides for Sun Prairie.