One of the first steps you take when you are estimating your gardening schedule is find your 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.

The first chance to plant watercress in Edmond can be determined by using 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.

Watercress do well in mild cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant watercress in Edmond 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. If you wait any later than that and your watercress may not have a chance to fully mature. You can get started a few weeks earlier by starting your watercress indoors.

Last Frost Date

The average date of last frost is April 15 in Edmond. You can expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Edmond 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 Edmond you get a frost after April 15 so just be sure to be ready to protect your watercress in the event of a surprise late frost.

USDA Zone Info for Edmond

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 Edmond

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