One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when it's possible to plant gloriosa lily is to look at the USDA zone info for Suisun City.

Planting Calendar for Gloriosa Lily

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

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 Suisun City is March. However, you really should wait until April 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 September. 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 little bit earlier by starting your gloriosa lily indoors.

Last Frost Date

On average the last frost is on February 15 in Suisun City. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Suisun City is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Suisun City it frosts late in the year after February 15 be ready to cover your gloriosa lily if you have a surprise late frost.

USDA Zone Info for Suisun City

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Suisun City

You may be interested in your other planting guides for Suisun City.