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.

The USDA zone info for Nitro can be reviewed to figure out when you can plant violets.

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 do well in moderate cold.

The earliest that you can plant violets in Nitro 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 really do well. If you are starting your violets indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Nitro the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Nitro is an average the actual date of last frost is different every year. Half of the time in Nitro you get surprised by a frost after April 15 so make sure that you are ready to protect your violets in the event of a surprise late frost.

USDA Zone Info for Nitro

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 Nitro

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