The USDA Zone info is a great tool for gardeners to help us figure out 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.

By looking at the USDA zone info for Portland it's possible to figure out when it's a good idea to plant painted daisies.

Planting Calendar for Painted Daisies

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

Painted Daisies tend to make it in mild cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

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

Last Frost Date

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

It's important to remember that USDA zone info for Portland is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Portland it frosts late in the year after March 15 so be sure to be ready to protect your painted daisies in the event of a surprise late frost.

USDA Zone Info for Portland

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 Portland

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