One of the first steps you take when you are making a decision about 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.

In Mountlake Terrace you can determine when it's a good idea to plant twinspur by referring to the USDA zone info.

Planting Calendar for Twinspur

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

Twinspur tend to make it in a little bit of cold which means that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant twinspur 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 twinspur and expect a good harvest is probably September. Any later than that and your twinspur may not have a chance to fully mature. Starting your twinspur indoors is a great way to get them started a little bit earlier.

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.

Just be sure to remember that USDA zone info for Mountlake Terrace is just an average and 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 a frost after March 15 be ready to cover your twinspur 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.