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

A way of figuring out when to plant scaevola is to examine the USDA zone info for Northfield.

Planting Calendar for Scaevola

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

Scaevola do not do well in cold weather which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant scaevola in Northfield 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. Any later than that and your scaevola may not have a chance to fully mature. You can get started a few weeks earlier by starting your scaevola indoors.

Last Frost Date

On average the last frost is on April 15 in Northfield. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Northfield may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Northfield last frost occurs after April 15 so just be sure to be ready to protect your scaevola if you have a surprise late frost.

USDA Zone Info for Northfield

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 Northfield

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