The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Grants Pass you can figure out when it's the best time to plant coreopsis by referring to 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.

Coreopsis can survive in moderate cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant coreopsis in Grants Pass 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. You probably don't want to wait any later than that or else your coreopsis may not have a chance to fully mature. If you are starting your coreopsis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Grants Pass 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 Grants Pass may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Grants Pass you get a frost after March 15 so just be sure to be ready to cover your coreopsis in the event of a surprise late frost.

USDA Zone Info for Grants Pass

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	October 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 Grants Pass

You may be interested in your other planting guides for Grants Pass.