One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of making a decision about when it's a good idea to plant coral bells is to look at the USDA zone info for Hollidaysburg.

Planting Calendar for Coral Bells

Frost tolerance for coral bells:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant coral bells just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant coral bells in Hollidaysburg is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant coral bells and expect a good harvest is probably September. Any later than that and your coral bells may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your coral bells indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Hollidaysburg. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Hollidaysburg is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Hollidaysburg you get surprised by a frost after April 15 so make sure that you are prepared to cover your coral bells in the event of one of those late frosts.

USDA Zone Info for Hollidaysburg

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 Hollidaysburg

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