One of the first steps you take when you are estimating 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.

You can determine when it's possible to plant calla lily in Mountlake Terrace by using the USDA zone info.

Planting Calendar for Calla Lily

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

Calla Lily require warm weather which tells us that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant calla lily in Mountlake Terrace 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 calla lily and expect a good harvest is probably August. If you wait any later than that and your calla lily may not have a chance to grow to maturity. Starting your calla lily indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Mountlake Terrace is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Mountlake Terrace you get surprised by a frost after March 15 so be sure to be ready to cover your calla lily 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.