The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Greencastle you can estimate when it's possible to plant sweet woodruff by looking at 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 more sensitive plants.

The earliest that you can plant sweet woodruff in Greencastle 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. Any later than that and your sweet woodruff may not have a chance to really do well. You can get started a few weeks earlier by starting your sweet woodruff indoors.

Last Frost Date

On average the last frost is on April 15 in Greencastle. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Greencastle may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Greencastle you get a frost after April 15 so make sure that you are prepared to cover your sweet woodruff if you have a surprise late frost.

USDA Zone Info for Greencastle

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Greencastle

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