When to Plant Polka Dot Plant in Vernon Hills, IL

Before planting it is a good idea to find your USDA Zone info to determine your garden 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 possible to plant polka dot plant in Vernon Hills by reviewing 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 has passed.

Polka Dot Plant require warm weather which means that you have to wait until it warms up after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant polka dot plant
Possibly ok, but a risky time to plant polka dot plant
Probably not a good time to plant polka dot plant

The earliest that you can plant polka dot plant in Vernon Hills 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 couple of weeks earlier by starting your polka dot plant indoors.

Last Frost Date

In Vernon Hills the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Vernon Hills is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Vernon Hills last frost occurs after April 15 be ready to protect your polka dot plant if you have a late frost.

USDA Zone Info for Vernon Hills

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 Vernon Hills

You may be interested in your other planting guides for Vernon Hills.