USDA Planting Zone Guide

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What are USDA Zones?

USDA Zones are the standard by which you, as a succulent gardener, can figure out what succulents will thrive outdoors in a particular location (zone).  Of course, if you keep your succulents indoors year-round, it doesn’t matter what zone you’re in!

The planting zones tell us the lowest average winter temperatures, divided into 10°F zones. Each zone is then divided into 2 smaller zones as indicated by a or b.

So, when you’re researching types of succulents, one piece of information you’ll find is the “cold hardiness” of each species. It might say something like, “This succulent is hardyhardy Able to withstand most climatic conditions all year without protection, often qualified with a minimum temperature to zone 9b.”  That means it can survive outdoors in temperatures down to about 25°-30°F. 

Don't rely ONLY on your zone to tell you what to plant. There's a LOT more to it.

One problem with the USDA Planting Zones is that it doesn’t take other weather variables into consideration like rainfall, humidity, elevation, proximity to large bodies of water and hottest average temperature. It only accounts for the LOWEST temperature. 

An example of this problem is that Dallas, Texas and Seattle, Washington are both Zone 8 (minimum avg. 10°-20°F).

Average high:
Seattle 76°F
Dallas 98°F. 

Average days of precipitation:
Seattle 155
Dallas 80

Average sunny days:
Seattle 152
Dallas 234

Find Your USDA Zone

usda zone map for succulent planting

Zone

From

To

1

a

−60 °F

−55 °F

b

−55 °F

−50 °F

2

a

−50 °F

−45 °F

b

−45 °F

−40 °F

3

a

−40 °F

−35 °F

b

−35 °F

−30 °F

4

a

−30 °F

−25 °F

b

−25 °F

−20 °F

5

a

−20 °F

−15 °F

b

−15 °F

−10 °F

6

a

−10 °F

−5 °F

b

−5 °F

0 °F

7

a

0 °F

5 °F

b

5 °F

10 °F

8

a

10 °F

15 °F

b

15 °F

20 °F

9

a

20 °F

25 °F

b

25 °F

30 °F

10

a

30 °F

35 °F

b

35 °F

40 °F

11

a

40 °F

45 °F

b

45 °F

50 °F

12

a

50 °F

55 °F

b

55 °F

60 °F

13

a

60 °F

65 °F

b

65 °F

70 °F

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Community

Join us in the SUCCULENTdotCARE Facebook Group to share pictures, ask questions and talk about all things succulent!

Instagram

Follow me on Instagram for more succulent pictures and funny succulent memes to get you through the day.

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