The USDA Zone info is a great tool for gardeners to help us determine 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.

The USDA zone info for Redlands should be looked at to estimate when you can 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 just a tiny bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant euphorbia in Redlands 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. You probably don't want to wait any later than that or else your euphorbia may not have a chance to grow to maturity. If you are starting your euphorbia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Redlands the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Redlands is not always accurate the actual date of last frost changes from year to year. Since half of the time in Redlands last frost occurs after February 15 be ready to protect your euphorbia if you have a late frost.

USDA Zone Info for Redlands

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 Redlands

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