Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Port Huron you can determine when you can plant endive by referring to the USDA zone info.

Planting Calendar for Endive

Frost tolerance for endive:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant endive just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant endive in Port Huron is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant endive and expect a good harvest is probably September. If you wait any later than that and your endive may not have a chance to fully mature. You can get started a few weeks earlier by starting your endive indoors.

Last Frost Date

The average date of last frost is April 15 in Port Huron. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Port Huron may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Port Huron it frosts late in the year after April 15 so always be ready to protect your endive if you have a surprise late frost.

USDA Zone Info for Port Huron

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Port Huron

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