The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when to plant heliotrope is to examine the USDA zone info for Venice.

Planting Calendar for Heliotrope

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

It's probably not a good idea to plant heliotrope until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant heliotrope in Venice is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant heliotrope and expect a good harvest is probably September. You probably don't want to wait any later than that or else 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 couple of weeks earlier.

Last Frost Date

In Venice the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Venice is just an average and the actual date of last frost is different every year. Since half of the time in Venice you get surprised by a frost after January 31 be ready to cover your heliotrope if you have a surprise late frost.

USDA Zone Info for Venice

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°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 35°F.

Plants to Grow in Venice

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