One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when to plant gloriosa lily by looking at the USDA zone info for Bolingbrook.

Planting Calendar for Gloriosa Lily

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

You should not plant gloriosa lily until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant gloriosa lily in Bolingbrook 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. You probably don't want to wait any later than that or else your gloriosa lily may not have a chance to really do well. You can get started a few weeks earlier by starting your gloriosa lily indoors.

Last Frost Date

On average the last frost is on April 15 in Bolingbrook. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Bolingbrook is an average the actual date of last frost is different every year. Since half of the time in Bolingbrook last frost occurs after April 15 be ready to protect your gloriosa lily if you have a late frost.

USDA Zone Info for Bolingbrook

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 Bolingbrook

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