One of the best tools that you have as gardeners to help us estimate 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.

You can figure out when you can plant chard in Donora by looking at the USDA zone info.

Planting Calendar for Chard

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

Since chard are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant chard in Donora 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 chard and expect a good harvest is probably September. If you wait any later than that and your chard may not have a chance to grow to maturity. If you are starting your chard indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Donora. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Donora may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Donora you get surprised by a frost after April 15 be ready to cover your chard in the event of one of those late frosts.

USDA Zone Info for Donora

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 Donora

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