Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when to plant coral bells by referring to the USDA zone info for Duvall.

Planting Calendar for Coral Bells

Frost tolerance for coral bells:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Coral Bells tend to make it in a little bit of cold which means that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant coral bells in Duvall is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant coral bells and expect a good harvest is probably September. Any later than that and your coral bells may not have a chance to really do well. You can get started a couple of weeks earlier by starting your coral bells indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Duvall. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Duvall may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Duvall it frosts late in the year after March 15 so always be ready to protect your coral bells in the event of a surprise late frost.

USDA Zone Info for Duvall

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 Duvall

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