One of the first steps you take when you are making a decision about 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.

It's possible to figure out when to plant gayfeather by using the USDA zone info for Beaverton.

Planting Calendar for Gayfeather

Frost tolerance for gayfeather:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Gayfeather do ok in pretty solid cold which means that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant gayfeather in Beaverton 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 gayfeather and expect a good harvest is probably September. Any later than that and your gayfeather may not have a chance to fully mature. Starting your gayfeather indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Beaverton the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Beaverton may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Beaverton you get a frost after March 15 be ready to protect your gayfeather in the event of a late frost.

USDA Zone Info for Beaverton

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Beaverton

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