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.

In Gilbert you can figure out when you can plant lisianthus by checking out the USDA zone info.

Planting Calendar for Lisianthus

Frost tolerance for lisianthus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant lisianthus until after the last frost because they are not cold tolerant.

The earliest that you can plant lisianthus in Gilbert 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 lisianthus and expect a good harvest is probably September. Any later than that and your lisianthus may not have a chance to grow to maturity. Starting your lisianthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Gilbert. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Gilbert is just an average the actual date of last frost is different every year. Since half of the time in Gilbert you get a frost after February 15 be ready to cover your lisianthus if you have one of those late frosts.

USDA Zone Info for Gilbert

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 Gilbert

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