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

The first opportunity to plant sweet woodruff in Cottage Grove should be determined by checking out 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 are moderately cold tolerant you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant sweet woodruff in Cottage Grove 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 sweet woodruff and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet woodruff may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your sweet woodruff indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Cottage Grove. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Cottage Grove is an average the actual date of last frost is different every year. Half of the time in Cottage Grove you get surprised by a frost after May 15 so make sure that you are prepared to protect your sweet woodruff if you have a surprise late frost.

USDA Zone Info for Cottage Grove

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Cottage Grove

You may be interested in your other planting guides for Cottage Grove.