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

In Youngstown you can figure out when it's the best time to plant swan river daisy by checking out the USDA zone info.

Planting Calendar for Swan River Daisy

Frost tolerance for swan river daisy:	Not tolerant of frost.
When to plant:	After the last frost.

It's a bad idea to plant swan river daisy until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant swan river daisy in Youngstown 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 swan river daisy and expect a good harvest is probably August. You probably don't want to wait any later than that or else your swan river daisy may not have a chance to fully mature. You can get started a little bit earlier by starting your swan river daisy indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Youngstown. It might get as low as -10°F during the coldest months of winter.

Remember that USDA zone info for Youngstown is just an average and the actual date of last frost is different every year. Since half of the time in Youngstown you get a frost after April 15 be ready to protect your swan river daisy in the event of one of those late frosts.

USDA Zone Info for Youngstown

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 Youngstown

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