Before planting it is a good idea to find your USDA Zone info to determine 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.

The best time to plant blue lace flowers in Washington can be determined by checking out the USDA zone info.

Planting Calendar for Blue Lace Flowers

Frost tolerance for blue lace flowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant blue lace flowers slightly earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant blue lace flowers in Washington 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 blue lace flowers and expect a good harvest is probably August. If you wait any later than that and your blue lace flowers may not have a chance to really do well. You can get started a couple of weeks earlier by starting your blue lace flowers indoors.

Last Frost Date

In Washington the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Washington is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Washington last frost occurs after April 15 so make sure that you are ready to cover your blue lace flowers if you have a late frost.

USDA Zone Info for Washington

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Washington

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