One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to determine when it's a good idea to plant anchusa by using the USDA zone info for Mountlake Terrace.

Planting Calendar for Anchusa

Frost tolerance for anchusa:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since anchusa are very cold tolerant you can plant them quite a bit earlier in the year than more sensitive plants.

The earliest that you can plant anchusa 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 anchusa and expect a good harvest is probably September. If you wait any later than that and your anchusa may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your anchusa indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Mountlake Terrace. You can expect an average low temperature of 15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Mountlake Terrace is an average and the actual date of last frost is different every year. Since half of the time in Mountlake Terrace there is a last frost after March 15 be ready to cover your anchusa in the event of a 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.