When can I plant Balloon Flower in Zone 5a

One of the first steps we take when we are getting a good idea our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You should be able to determine when you can plant balloon flower by checking out the USDA zone info for Zone 5a.


Planting Calendar for Balloon Flower

Frost tolerance for balloon flower: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

Since balloon flower are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant balloon flower in Zone 5a 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 balloon flower and expect a good harvest is probably August. Any later than that and your balloon flower may not have a chance to fully mature. Starting your balloon flower indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Zone 5a. We can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Zone 5a is an average our actual date of last frost changes from year to year. Half of the time in Zone 5a it frosts late in the year after April 15 so make sure that you are prepared to cover your balloon flower if we have a late frost.

USDA Zone Info for Zone 5a

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 Zone 5a

You may be interested in our other planting guides for Zone 5a.