One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

A way of determining when it's possible to plant firebush is to examine the USDA zone info for Seattle.

Planting Calendar for Firebush

Frost tolerance for firebush:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably not a good idea to plant firebush until after the last frost because they require warm weather.

The earliest that you can plant firebush in Seattle is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant firebush and expect a good harvest is probably August. If you wait any later than that and your firebush may not have a chance to grow to maturity. You can get started a little bit earlier by starting your firebush indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Seattle. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Seattle is just an average the actual date of last frost changes from year to year. Half of the time in Seattle last frost occurs after March 15 so just be sure to be ready to protect your firebush in the event of one of those late frosts.

USDA Zone Info for Seattle

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 Seattle

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