Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when it's the best time to plant matricaria by using the USDA zone info for Wilsonville.

Planting Calendar for Matricaria

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

You can plant matricaria just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant matricaria in Wilsonville 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 matricaria and expect a good harvest is probably September. Any later than that and your matricaria may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your matricaria indoors.

Last Frost Date

The average date of last frost is March 15 in Wilsonville. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Wilsonville 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 Wilsonville you get surprised by a frost after March 15 be ready to cover your matricaria in the event of a surprise late frost.

USDA Zone Info for Wilsonville

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 Wilsonville

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