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

In Roswell you can estimate when it's the best time to plant hemerocallis by checking out the USDA zone info.

Planting Calendar for Hemerocallis

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

You can plant hemerocallis a little bit earlier in the year because they are moderately cold tolerant.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Roswell. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Roswell is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Roswell it frosts late in the year after April 15 be ready to cover your hemerocallis if you have a late frost.

USDA Zone Info for Roswell

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Roswell

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