Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Woodburn should be read to estimate when to plant oriental poppies.

Planting Calendar for Oriental poppies

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

Oriental poppies can survive in mild cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant oriental poppies in Woodburn 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 oriental poppies and expect a good harvest is probably September. You probably don't want to wait any later than that or else your oriental poppies may not have a chance to grow to maturity. If you are starting your oriental poppies indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on March 15 in Woodburn. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Woodburn may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Woodburn it frosts late in the year after March 15 so make sure that you are prepared to protect your oriental poppies if you have one of those late frosts.

USDA Zone Info for Woodburn

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 Woodburn

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