One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Hopkins should be used to determine when to plant sweet woodruff.

Planting Calendar for Sweet Woodruff

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

You can plant sweet woodruff a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant sweet woodruff in Hopkins 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. If you wait any later than that and your sweet woodruff may not have a chance to fully mature. You can get started a few weeks earlier by starting your sweet woodruff indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Hopkins. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Hopkins may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Hopkins it frosts late in the year after May 15 so make sure that you are prepared to cover your sweet woodruff in the event of a surprise late frost.

USDA Zone Info for Hopkins

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 Hopkins

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