One of the first steps you take when you are figuring out 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.

The USDA zone info for Richfield should be reviewed to figure out when it's possible to plant garden orache.

Planting Calendar for Garden Orache

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

Garden Orache do well in moderate cold which tells us that you can start planting them earlier than plants that are more sensitive to the cold.

The earliest that you can plant garden orache in Richfield 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 garden orache and expect a good harvest is probably September. If you wait any later than that and your garden orache may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your garden orache indoors.

Last Frost Date

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

Remember that USDA zone info for Richfield is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Richfield you get a frost after April 15 so make sure that you are prepared to protect your garden orache if you have a surprise late frost.

USDA Zone Info for Richfield

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 Richfield

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