Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when to plant chard by looking at the USDA zone info for Lewiston.

Planting Calendar for Chard

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

You can plant chard a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant chard in Lewiston 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. Any later than that and your chard may not have a chance to grow to maturity. You can get started a little bit earlier by starting your chard indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Lewiston is not always accurate and the actual date of last frost is different every year. Since half of the time in Lewiston it frosts late in the year after April 15 be ready to protect your chard if you have one of those late frosts.

USDA Zone Info for Lewiston

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Lewiston

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