The USDA Zone info is a great tool for gardeners to help us figure out 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.

In Silverton you can figure out when it's possible to plant sutera by using the USDA zone info.

Planting Calendar for Sutera

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

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

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

Last Frost Date

The average date of last frost is March 15 in Silverton. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Silverton is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Silverton you get a frost after March 15 be ready to protect your sutera if you have one of those late frosts.

USDA Zone Info for Silverton

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Silverton

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