The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for New Castle can be reviewed to figure out when it's a good idea to plant chrysanthemums.

Planting Calendar for Chrysanthemums

Frost tolerance for chrysanthemums:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Chrysanthemums are barely cold tolerant which means that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant chrysanthemums in New Castle is March. However, you really should wait until April if you don't want to take any chances.

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

Last Frost Date

On average the last frost is on April 15 in New Castle. In the coldest months of winter you can expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for New Castle may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in New Castle it frosts late in the year after April 15 so make sure that you are ready to protect your chrysanthemums if you have a surprise late frost.

USDA Zone Info for New Castle

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in New Castle

You may be interested in your other planting guides for New Castle.