One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of estimating when it's possible to plant creeping zinnia is to use the USDA zone info for Sellersville.

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.

Since creeping zinnia do ok in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant creeping zinnia in Sellersville 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. Any later than that and your creeping zinnia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your creeping zinnia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Sellersville. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Sellersville is an average and the actual date of last frost will vary from year to year. Half of the time in Sellersville you get surprised by a frost after April 15 so be sure to be ready to protect your creeping zinnia in the event of one of those late frosts.

USDA Zone Info for Sellersville

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 Sellersville

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