The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to determine when it's possible to plant lunaria by looking at the USDA zone info for Mountlake Terrace.

Planting Calendar for Lunaria

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

Since lunaria are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant lunaria in Mountlake Terrace 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 lunaria and expect a good harvest is probably September. If you wait any later than that and your lunaria may not have a chance to fully mature. If you are starting your lunaria indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Mountlake Terrace. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Mountlake Terrace may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Mountlake Terrace you get surprised by a frost after March 15 be ready to cover your lunaria in the event of a surprise late frost.

USDA Zone Info for Mountlake Terrace

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 Mountlake Terrace

You may be interested in your other planting guides for Mountlake Terrace.