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.

You can figure out when it's the best time to plant nemesia in Tualatin by looking at the USDA zone info.

Planting Calendar for Nemesia

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

It's not a good idea to plant nemesia until after the last frost because they require warm weather.

The earliest that you can plant nemesia in Tualatin 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 nemesia and expect a good harvest is probably August. Any later than that and your nemesia may not have a chance to fully mature. Starting your nemesia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Tualatin. In the coldest months of winter you can expect an average low temperature of 15°F.

Just be sure to remember that USDA zone info for Tualatin is just an average and the actual date of last frost is different every year. Half of the time in Tualatin you get surprised by a frost after March 15 so always be ready to cover your nemesia in the event of a 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.