One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's possible to plant hemerocallis is to check out the USDA zone info for Roanoke.

Planting Calendar for Hemerocallis

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

Since hemerocallis are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant hemerocallis in Roanoke 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. Any later than that and your hemerocallis may not have a chance to really do well. Starting your hemerocallis indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Roanoke. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Roanoke is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Roanoke you get surprised by a frost after April 15 be ready to protect your hemerocallis in the event of a surprise late frost.

USDA Zone Info for Roanoke

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Roanoke

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