Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant creeping zinnia is to examine the USDA zone info for Johnstown.

Planting Calendar for Creeping Zinnia

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

You can plant creeping zinnia a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant creeping zinnia in Johnstown 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 creeping zinnia and expect a good harvest is probably August. If you wait any later than that and your creeping zinnia may not have a chance to fully mature. Starting your creeping zinnia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Johnstown the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -10°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Johnstown and it can change quite a bit from year to year. Since half of the time in Johnstown it frosts late in the year after April 15 be ready to cover your creeping zinnia in the event of a late frost.

USDA Zone Info for Johnstown

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 Johnstown

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