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

It's possible to determine when it's a good idea to plant scabiosa by using the USDA zone info for Ripon.

Planting Calendar for Scabiosa

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

Since scabiosa do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant scabiosa in Ripon 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. If you wait any later than that and your scabiosa may not have a chance to really do well. Starting your scabiosa 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 Ripon. You should expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Ripon is not always accurate and the actual date of last frost is different every year. Half of the time in Ripon last frost occurs after February 15 so make sure that you are prepared to protect your scabiosa in the event of one of those late frosts.

USDA Zone Info for Ripon

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 Ripon

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