One of the best tools that you have as gardeners to help us figure out 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.

It's possible to figure out when it's possible to plant dahlia by checking out the USDA zone info for Newark.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since dahlia require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant dahlia in Newark is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant dahlia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your dahlia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your dahlia indoors.

Last Frost Date

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

Remember that USDA zone info for Newark is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Newark there is a last frost after April 15 so make sure that you are ready to protect your dahlia in the event of one of those late frosts.

USDA Zone Info for Newark

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 Newark

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