The USDA Zone info is a great tool for gardeners to help us determine 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 estimating when it's possible to plant anemone is to use the USDA zone info for Portland.

Planting Calendar for Anemone

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

Since anemone do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant anemone in Portland 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 anemone and expect a good harvest is probably September. If you wait any later than that and your anemone may not have a chance to grow to maturity. If you are starting your anemone indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Portland the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for Portland is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Portland you get surprised by a frost after April 15 be ready to cover your anemone in the event of a late frost.

USDA Zone Info for Portland

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 Portland

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