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.

A common way of getting a good idea when to plant polka dot plant is to refer to the USDA zone info for Allentown.

Planting Calendar for Polka Dot Plant

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

It's probably not a good idea to plant polka dot plant 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 polka dot plant in Allentown 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 grow to maturity. You can get started a few weeks earlier by starting your polka dot plant indoors.

Last Frost Date

In Allentown the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -5°F.

Just be sure to remember that USDA zone info for Allentown is just an average and the actual date of last frost is different every year. Since half of the time in Allentown you get surprised by a frost after April 15 be ready to cover your polka dot plant in the event of a surprise late frost.

USDA Zone Info for Allentown

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Allentown

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