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 Madisonville you can estimate when you can plant watercress by checking out the USDA zone info.

Planting Calendar for Watercress

Frost tolerance for watercress:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant watercress just a tiny bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant watercress in Madisonville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant watercress and expect a good harvest is probably August. You probably don't want to wait any later than that or else your watercress may not have a chance to really do well. Starting your watercress indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Madisonville. You can expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Madisonville may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Madisonville it frosts late in the year after April 15 so make sure that you are ready to cover your watercress if you have a surprise late frost.

USDA Zone Info for Madisonville

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 Madisonville

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