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.

You can estimate when to plant violets in Westminster 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.

You can plant violets a little 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 violets in Westminster 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. You probably don't want to wait any later than that or else 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

On average the last frost is on April 15 in Westminster. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Westminster may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Westminster you get surprised by a frost after April 15 so be sure to be ready to protect your violets in the event of a surprise late frost.

USDA Zone Info for Westminster

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 Westminster

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