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.

You can figure out when it's the best time to plant heliotrope in Poplar Bluff by reviewing the USDA zone info.

Planting Calendar for Heliotrope

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

You can not plant heliotrope until after the last frost because they do not do well in cold weather.

The earliest that you can plant heliotrope in Poplar Bluff 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 fully mature. Starting your heliotrope indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Poplar Bluff may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Poplar Bluff there is a last frost after April 15 so make sure that you are prepared to protect your heliotrope in the event of one of those late frosts.

USDA Zone Info for Poplar Bluff

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 Poplar Bluff

You may be interested in your other planting guides for Poplar Bluff.