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

In Scappoose you can determine when it's a good idea to plant asparagus by using the USDA zone info.

Planting Calendar for Asparagus

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

Asparagus do well in cold which tells us that you can plant them much earlier than plants that are more sensitive to the cold.

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

Last Frost Date

The average date of last frost is March 15 in Scappoose. In the coldest months of winter you can expect an average low temperature of 15°F.

It's important to remember that USDA zone info for Scappoose is not always accurate and the actual date of last frost changes from year to year. Half of the time in Scappoose you get a frost after March 15 so make sure that you are prepared to cover your asparagus in the event of one of those late frosts.

USDA Zone Info for Scappoose

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 Scappoose

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