One of the best tools that you have as gardeners to help us figure out 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.

The best time to plant sweet woodruff in Silverton should be determined by reviewing the USDA zone info.

Planting Calendar for Sweet Woodruff

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

Since sweet woodruff do well in moderate cold you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

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

Last Frost Date

On average the last frost has passed is on March 15 in Silverton. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Silverton may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Silverton there is a last frost after March 15 so make sure that you are ready to protect your sweet woodruff if you have a surprise late frost.

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.