One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant livingstone daisy in Portland can be figured out by reviewing the USDA zone info.

Planting Calendar for Livingstone Daisy

Frost tolerance for livingstone daisy:	Not tolerant of frost.
When to plant:	After the last frost.

Since livingstone daisy are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant livingstone daisy in Portland is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant livingstone daisy and expect a good harvest is probably September. Any later than that and your livingstone daisy may not have a chance to grow to maturity. Starting your livingstone daisy indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Portland. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Portland is an average the actual date of last frost is different every year. Half of the time in Portland last frost occurs after February 15 so be sure to be ready to cover your livingstone daisy if you have a late frost.

USDA Zone Info for Portland

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Portland

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