The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when to plant aegopodium is to check out the USDA zone info for Tualatin.

Planting Calendar for Aegopodium

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

Since aegopodium do well in cold you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant aegopodium in Tualatin 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 aegopodium and expect a good harvest is probably September. You probably don't want to wait any later than that or else your aegopodium may not have a chance to grow to maturity. Starting your aegopodium indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Tualatin is an average the actual date of last frost is different every year. Since half of the time in Tualatin last frost occurs after March 15 be ready to cover your aegopodium if you have a surprise late frost.

USDA Zone Info for Tualatin

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 Tualatin

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