The USDA Zone info is a great tool for gardeners to help us estimate 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.

You can estimate when it's a good idea to plant polka dot plant in Rockwall by looking at the USDA zone info.

Planting Calendar for Polka Dot Plant

Frost tolerance for polka dot plant:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably not a good idea to plant polka dot plant until after the last frost because they do not do well in cold weather.

The earliest that you can plant polka dot plant in Rockwall 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 polka dot plant and expect a good harvest is probably August. If you wait any later than that and your polka dot plant may not have a chance to really do well. Starting your polka dot plant indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Rockwall the average date of last frost happens on March 15. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Rockwall is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Rockwall last frost occurs after March 15 so make sure that you are ready to cover your polka dot plant in the event of one of those late frosts.

USDA Zone Info for Rockwall

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 Rockwall

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