One of the first steps you take when you are getting a good idea 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 earliest that you can plant chrysocephalum in Eugene should be figured out by using the USDA zone info.

Planting Calendar for Chrysocephalum

Frost tolerance for chrysocephalum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant chrysocephalum until after the last frost because they require warm weather.

The earliest that you can plant chrysocephalum in Eugene is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant chrysocephalum and expect a good harvest is probably August. Any later than that and your chrysocephalum may not have a chance to really do well. You can get started a little bit earlier by starting your chrysocephalum indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Eugene is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Eugene there is a last frost after March 15 be ready to protect your chrysocephalum if you have one of those late frosts.

USDA Zone Info for Eugene

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 Eugene

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