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.

In Hawthorne you can determine when it's the best time to plant balloon flower by looking at 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 tend to make it in some cold which tells us that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant balloon flower in Hawthorne 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. You probably don't want to wait any later than that or else your balloon flower may not have a chance to fully mature. You can get started a little bit earlier by starting your balloon flower indoors.

Last Frost Date

The average date of last frost is April 15 in Hawthorne. It might get as low as 0°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Hawthorne and it will vary from year to year. Half of the time in Hawthorne there is a last frost 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 Hawthorne

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Hawthorne

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