Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when it's possible to plant gloriosa lily by looking at the USDA zone info for Platteville.

Planting Calendar for Gloriosa Lily

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

Gloriosa Lily require warm weather which means that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant gloriosa lily in Platteville 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. Starting your gloriosa lily indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Platteville. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Platteville is just an average the actual date of last frost is different every year. Since half of the time in Platteville it frosts late in the year after April 15 be ready to cover your gloriosa lily if you have a surprise late frost.

USDA Zone Info for Platteville

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Platteville

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