One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant coreopsis in Puyallup can be determined by reviewing the USDA zone info.

Planting Calendar for Coreopsis

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

Since coreopsis are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant coreopsis in Puyallup 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 coreopsis and expect a good harvest is probably September. Any later than that and your coreopsis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your coreopsis indoors.

Last Frost Date

In Puyallup the average date of last frost happens on March 15. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Puyallup is not always accurate the actual date of last frost is different every year. Since half of the time in Puyallup it frosts late in the year after March 15 be ready to cover your coreopsis in the event of a surprise late frost.

USDA Zone Info for Puyallup

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 Puyallup

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