The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Austin can be reffered to in order to figure out when it's possible to plant gloriosa lily.

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 require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant gloriosa lily in Austin is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your gloriosa lily may not have a chance to fully mature. You can get started a few weeks earlier by starting your gloriosa lily indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Austin. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Austin is an average the actual date of last frost will vary from year to year. Since half of the time in Austin it frosts late in the year after May 15 be ready to protect your gloriosa lily in the event of one of those late frosts.

USDA Zone Info for Austin

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Austin

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