The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Jacksonville you can estimate when it's a good idea to plant heliotrope by reviewing the USDA zone info.

Planting Calendar for Heliotrope

Frost tolerance for heliotrope:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since heliotrope do not do well in cold weather it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant heliotrope in Jacksonville 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 heliotrope and expect a good harvest is probably August. If you wait any later than that and your heliotrope may not have a chance to really do well. If you are starting your heliotrope indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Jacksonville. It might get as low as 10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Jacksonville is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Jacksonville you get a frost after March 15 be ready to cover your heliotrope if you have a surprise late frost.

USDA Zone Info for Jacksonville

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Jacksonville

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