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.

By using the USDA zone info for Zone 4a it's possible to figure out when it's a good idea to plant baby's breath.

Planting Calendar for Baby's Breath

Frost tolerance for baby's breath:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Baby's Breath can survive in some cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant baby's breath in Zone 4a 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 baby's breath and expect a good harvest is probably August. You probably don't want to wait any later than that or else your baby's breath may not have a chance to fully mature. You can get started a little bit earlier by starting your baby's breath indoors.

Last Frost Date

The average date of last frost is May 15 in Zone 4a. In the coldest months of winter you can expect an average low temperature of -30°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 4a and it is different every year. Since half of the time in Zone 4a you get a frost after May 15 be ready to protect your baby's breath in the event of a late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

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