Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Hood River you can estimate when you can plant doronicum by looking at the USDA zone info.

Planting Calendar for Doronicum

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

You can plant doronicum a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant doronicum in Hood River 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 doronicum and expect a good harvest is probably September. You probably don't want to wait any later than that or else your doronicum may not have a chance to fully mature. You can get started a few weeks earlier by starting your doronicum indoors.

Last Frost Date

On average the last frost is on April 15 in Hood River. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Hood River may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Hood River last frost occurs after April 15 so always be ready to cover your doronicum in the event of one of those late frosts.

USDA Zone Info for Hood River

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Hood River

You may be interested in your other planting guides for Hood River.