The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant violets in Plymouth should be estimated by reviewing the USDA zone info.

Planting Calendar for Violets

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

Violets tend to make it in some cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant violets in Plymouth 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 violets and expect a good harvest is probably September. If you wait any later than that and your violets may not have a chance to grow to maturity. Starting your violets indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Plymouth may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Plymouth you get surprised by a frost after April 15 so always be ready to protect your violets in the event of a surprise late frost.

USDA Zone Info for Plymouth

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 Plymouth

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