The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Washington it's possible to figure out when it's the best time to plant scabiosa.

Planting Calendar for Scabiosa

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

You can plant scabiosa a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant scabiosa in Washington 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 scabiosa and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scabiosa may not have a chance to really do well. You can get started a couple of weeks earlier by starting your scabiosa indoors.

Last Frost Date

On average the last frost is on March 15 in Washington. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Washington is an average the actual date of last frost is different every year. Since half of the time in Washington you get a frost after March 15 be ready to cover your scabiosa in the event of a surprise late frost.

USDA Zone Info for Washington

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Washington

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