One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when to plant balloon flower by checking out the USDA zone info for Garrett.

Planting Calendar for Balloon Flower

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

Balloon Flower are barely cold tolerant which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant balloon flower in Garrett 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 really do well. You can get started a few weeks earlier by starting your balloon flower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Garrett. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Garrett is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Garrett it frosts late in the year after April 15 so always be ready to cover your balloon flower in the event of one of those late frosts.

USDA Zone Info for Garrett

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 Garrett

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