The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Port Clinton you can determine when you can plant alternanthera by using the USDA zone info.

Planting Calendar for Alternanthera

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

Alternanthera are not cold tolerant which tells us that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant alternanthera in Port Clinton 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 alternanthera and expect a good harvest is probably August. Any later than that and your alternanthera may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your alternanthera indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Port Clinton. It might get as low as -5°F during the coldest months of winter.

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Port Clinton and it can change quite a bit from year to year. Since half of the time in Port Clinton last frost occurs after April 15 be ready to cover your alternanthera in the event of a surprise late frost.

USDA Zone Info for Port Clinton

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Port Clinton

You may be interested in your other planting guides for Port Clinton.