One of the best tools that you have as gardeners to help us determine 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.

It's possible to estimate when it's a good idea to plant balloon flower by looking at the USDA zone info for Creswell.

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 do well in mild cold which means that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant balloon flower in Creswell 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. If you wait any later than that and 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

On average the last frost when the weather gets warmer is on March 15 in Creswell. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Creswell is an average the actual date of last frost will vary from year to year. Half of the time in Creswell you get a frost after March 15 so make sure that you are ready to protect your balloon flower in the event of a surprise late frost.

USDA Zone Info for Creswell

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Creswell

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