The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for North Liberty should be reffered to in order to figure out when to plant polka dot plant.

Planting Calendar for Polka Dot Plant

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

It's probably not a good idea to plant polka dot plant until after all chance of frost has passed because they require warm weather.

The earliest that you can plant polka dot plant in North Liberty 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 fully mature. You can get started a few weeks earlier by starting your polka dot plant indoors.

Last Frost Date

The average date of last frost is April 15 in North Liberty. In the coldest months of winter you should expect an average low temperature of -15°F.

Remember that USDA zone info for North Liberty is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in North Liberty it frosts late in the year after April 15 so be sure to be ready to cover your polka dot plant if you have a surprise late frost.

USDA Zone Info for North Liberty

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in North Liberty

You may be interested in your other planting guides for North Liberty.