Before planting it is a good idea to find your USDA Zone info to estimate 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.

The USDA zone info for Derby can be used to estimate when it's the best time to plant gloriosa lily.

Planting Calendar for Gloriosa Lily

Frost tolerance for gloriosa lily:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since gloriosa lily do not do well in cold weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant gloriosa lily in Derby is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant gloriosa lily and expect a good harvest is probably August. Any later than that and your gloriosa lily may not have a chance to really do well. You can get started a little bit earlier by starting your gloriosa lily indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Derby. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Derby may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Derby you get surprised by a frost after April 15 be ready to cover your gloriosa lily if you have a late frost.

USDA Zone Info for Derby

Here is the info for USDA Zone 6b.

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

Plants to Grow in Derby

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