How deep is the root system of a giant sequoia?

4 meters (13 feet)
20 meters (60 feet)
40 meters (130 feet)
80 meters (260 feet)
The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil.
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Answers by country

4 meters (13 feet)
20 meters (60 feet)
40 meters (130 feet)
80 meters (260 feet)
answers
flagAustralia
62%
10%
20%
6%
29
flagGreece
60%
8%
13%
17%
23
flagUkraine
42%
12%
22%
22%
71
flagBelarus
42%
7%
35%
14%
14
flagRussia
39%
12%
39%
6%
33
flagNigeria
36%
27%
18%
18%
11
flagPakistan
32%
10%
28%
28%
28
flagUnknown
27%
17%
24%
31%
29
flagRepublic of Ireland
27%
18%
27%
27%
11
flagthe United States
25%
12%
34%
26%
208
flagPoland
23%
17%
28%
30%
7205
flagIndia
23%
19%
26%
28%
183
flagthe Philippines
23%
5%
41%
29%
17
flagthe United Kingdom
22%
22%
35%
20%
54
flagGermany
18%
14%
36%
30%
55
flagCanada
16%
8%
33%
41%
12
flagAustria
13%
8%
47%
30%
23