One of the first steps you take when you are getting a good idea your gardening schedule is find your 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 getting a good idea when to plant zinnia is to examine the USDA zone info for Bloomsburg.

Planting Calendar for Zinnia

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

Zinnia are not cold tolerant which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant zinnia in Bloomsburg 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 zinnia and expect a good harvest is probably August. Any later than that and your zinnia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your zinnia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Bloomsburg. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Bloomsburg is an average the actual date of last frost will vary from year to year. Half of the time in Bloomsburg there is a last frost after April 15 so always be ready to protect your zinnia if you have a late frost.

USDA Zone Info for Bloomsburg

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 Bloomsburg

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