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
flagGreece
60%
13%
13%
13%
15
flagAustralia
52%
13%
26%
8%
23
flagRussia
42%
19%
33%
0%
21
flagBelarus
36%
9%
45%
9%
11
flagUkraine
35%
20%
25%
20%
40
flagPakistan
33%
11%
29%
25%
27
flagUnknown
28%
17%
25%
28%
28
flagthe United States
26%
11%
34%
27%
197
flagthe United Kingdom
24%
22%
32%
22%
50
flagIndia
23%
18%
27%
28%
171
flagthe Philippines
23%
5%
41%
29%
17
flagPoland
22%
18%
28%
30%
6940
flagGermany
20%
17%
24%
37%
29
flagCanada
16%
8%
33%
41%
12
flagAustria
7%
0%
50%
42%
14