Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of determining when it's possible to plant chard is to consult the USDA zone info for Cambridge.

Planting Calendar for Chard

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

Chard do well in mild cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant chard in Cambridge 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 fully mature. Starting your chard indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Cambridge. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Cambridge may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Cambridge there is a last frost after April 15 so make sure that you are ready to cover your chard if you have a surprise late frost.

USDA Zone Info for Cambridge

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 Cambridge

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