One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to estimate when to plant gloriosa lily by checking out the USDA zone info for Petersburg.

Planting Calendar for Gloriosa Lily

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

Since gloriosa lily do not do well in cold weather it is necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant gloriosa lily in Petersburg 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. If you wait 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

The average date of last frost is April 15 in Petersburg. In the coldest months of winter you should expect an average low temperature of 5°F.

It's important to remember that USDA zone info for Petersburg is an average and the actual date of last frost changes from year to year. Half of the time in Petersburg there is a last frost after April 15 so just be sure to be ready to cover your gloriosa lily in the event of one of those late frosts.

USDA Zone Info for Petersburg

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 Petersburg

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