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.

A way of getting a good idea when it's a good idea to plant mecardonia is to refer to the USDA zone info for Scappoose.

Planting Calendar for Mecardonia

Frost tolerance for mecardonia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since mecardonia require warm weather you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant mecardonia in Scappoose 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 mecardonia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your mecardonia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your mecardonia indoors.

Last Frost Date

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

Since the USDA zone info for Scappoose is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Scappoose it frosts late in the year after March 15 be ready to protect your mecardonia in the event of a surprise late frost.

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.