One of the best tools that you have as gardeners to help us figure out 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.

In Zimmerman you can determine when it's possible to plant gloriosa lily by looking at the USDA zone info.

Planting Calendar for Gloriosa Lily

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

It's probably a bad idea to plant gloriosa lily until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant gloriosa lily in Zimmerman 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. Any later than that and your gloriosa lily may not have a chance to fully mature. If you are starting your gloriosa lily indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zimmerman the average date of last frost happens on May 15. You should expect an average low temperature of -30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Zimmerman may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Zimmerman you get a frost after May 15 so just be sure to be ready to cover your gloriosa lily if you have one of those late frosts.

USDA Zone Info for Zimmerman

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zimmerman

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