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

A common way of estimating when you can plant gloriosa lily is to examine the USDA zone info for Columbus.

Planting Calendar for Gloriosa Lily

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

It's a bad idea to plant gloriosa lily until after all chance of frost has passed because they require warm weather.

The earliest that you can plant gloriosa lily in Columbus 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 grow to maturity. If you are starting your gloriosa lily indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Columbus is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Columbus it frosts late in the year after April 15 be ready to cover your gloriosa lily if you have one of those late frosts.

USDA Zone Info for Columbus

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Columbus

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