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

A common way of getting a good idea when to plant garden orache is to check out the USDA zone info for Portland.

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 means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant garden orache in Portland is January. However, you really should wait until February 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 October. If you wait any later than that and your garden orache may not have a chance to fully mature. If you are starting your garden orache indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Portland. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Portland is an average the actual date of last frost is different every year. Since half of the time in Portland last frost occurs after February 15 be ready to cover your garden orache in the event of a surprise late frost.

USDA Zone Info for Portland

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Portland

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