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.

The best time to plant balloon flower in Grand Haven should be determined by referring to the USDA zone info.

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 get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant balloon flower in Grand Haven 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. Starting your balloon flower indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Grand Haven. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Grand Haven is not always accurate the actual date of last frost is different every year. Since half of the time in Grand Haven last frost occurs after April 15 be ready to cover your balloon flower in the event of one of those late frosts.

USDA Zone Info for Grand Haven

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Grand Haven

You may be interested in your other planting guides for Grand Haven.