The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant scabiosa is to refer to the USDA zone info for San Marino.

Planting Calendar for Scabiosa

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

You can plant scabiosa a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant scabiosa in San Marino 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. Any later than that and your scabiosa may not have a chance to fully mature. If you are starting your scabiosa indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In San Marino the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for San Marino and it changes from year to year. Half of the time in San Marino you get a frost after January 31 so be sure to be ready to cover your scabiosa if you have a surprise late frost.

USDA Zone Info for San Marino

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Marino

You may be interested in your other planting guides for San Marino.