The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when you can plant dianthus is to use the USDA zone info for North Tonawanda.

Planting Calendar for Dianthus

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

Dianthus are moderately cold tolerant which means that you can get them planted earlier than other plants that might not handle the cold.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in North Tonawanda. You should expect an average low temperature of -10°F in the coldest months of winter.

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

USDA Zone Info for North Tonawanda

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 North Tonawanda

You may be interested in your other planting guides for North Tonawanda.