One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when it's possible to plant scabiosa by reviewing the USDA zone info for Campbell.

Planting Calendar for Scabiosa

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

Since scabiosa are moderately cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant scabiosa in Campbell is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant scabiosa and expect a good harvest is probably October. You probably don't want to wait any later than that or else your scabiosa may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your scabiosa indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Campbell. It might get as low as 25°F during the coldest months of winter.

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

USDA Zone Info for Campbell

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 Campbell

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