Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's possible to plant heliotrope in Madison Heights 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.

You should not plant heliotrope until after all chance of frost has passed because they require warm weather.

The earliest that you can plant heliotrope in Madison Heights 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. Any later than that and your heliotrope may not have a chance to fully mature. Starting your heliotrope indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Madison Heights. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Madison Heights may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Madison Heights you get a frost after April 15 be ready to protect your heliotrope in the event of a late frost.

USDA Zone Info for Madison Heights

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Madison Heights

You may be interested in your other planting guides for Madison Heights.