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.

In Grove City you can figure out when it's possible to plant platycodon by looking at the USDA zone info.

Planting Calendar for Platycodon

Frost tolerance for platycodon:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant platycodon slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant platycodon in Grove City is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant platycodon and expect a good harvest is probably August. If you wait any later than that and your platycodon may not have a chance to fully mature. If you are starting your platycodon indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Grove City. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Grove City is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Grove City it frosts late in the year after April 15 so be sure to be ready to protect your platycodon in the event of one of those late frosts.

USDA Zone Info for Grove City

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Grove City

You may be interested in your other planting guides for Grove City.