The USDA Zone info is a great tool for gardeners to help us determine 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.

In New Castle you can determine when it's the best time to plant scaevola by referring to the USDA zone info.

Planting Calendar for Scaevola

Frost tolerance for scaevola:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's probably a bad idea to plant scaevola until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant scaevola in New Castle 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 scaevola and expect a good harvest is probably August. If you wait any later than that and your scaevola may not have a chance to fully mature. Starting your scaevola indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In New Castle the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for New Castle is not always accurate the actual date of last frost is different every year. Since half of the time in New Castle it frosts late in the year after April 15 be ready to protect your scaevola in the event of 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.