One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when you can plant scaevola by looking at the USDA zone info for Harvard.

Planting Calendar for Scaevola

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

You can not plant scaevola until after the last frost because they are not cold tolerant.

The earliest that you can plant scaevola in Harvard 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 couple of weeks earlier by starting your scaevola indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Harvard. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Harvard may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Harvard last frost occurs after April 15 be ready to cover your scaevola if you have one of those late frosts.

USDA Zone Info for Harvard

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Harvard

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