One of the first steps you take when you are estimating your gardening schedule is find your 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 USDA zone info for San Marino can be used to figure out when it's a good idea to plant euphorbia.

Planting Calendar for Euphorbia

Frost tolerance for euphorbia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

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

The earliest that you can plant euphorbia in San Marino 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 euphorbia and expect a good harvest is probably September. Any later than that and your euphorbia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your euphorbia indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for San Marino is an average and the actual date of last frost is different every year. Since half of the time in San Marino there is a last frost after January 31 be ready to protect your euphorbia if you have one of those late frosts.

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.