One of the first steps you take when you are determining your gardening schedule is find your 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.

The first opportunity to plant heliotrope in Malden can be estimated by using 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.

Heliotrope require warm weather which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant heliotrope in Malden 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. You probably don't want to wait any later than that or else your heliotrope may not have a chance to fully mature. You can get started a little bit earlier by starting your heliotrope indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Malden. In the coldest months of winter you can expect an average low temperature of 0°F.

Remember that USDA zone info for Malden is just an average and the actual date of last frost changes from year to year. Half of the time in Malden you get a frost after April 15 so always be ready to protect your heliotrope if you have a late frost.

USDA Zone Info for Malden

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Malden

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