Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's possible to plant sweet woodruff is to consult the USDA zone info for Richland.

Planting Calendar for Sweet Woodruff

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

Sweet Woodruff are moderately cold tolerant which means that you can get them planted earlier than other frost tender plants.

The earliest that you can plant sweet woodruff in Richland 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 little bit earlier by starting your sweet woodruff indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Richland. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Richland may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Richland there is a last frost after March 15 be ready to protect your sweet woodruff in the event of one of those late frosts.

USDA Zone Info for Richland

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 Richland

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