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
flagPakistan
36%
9%
27%
27%
22
flagthe United States
28%
11%
32%
27%
185
flagUnknown
28%
17%
25%
28%
28
flagGermany
27%
9%
27%
36%
11
flagIndia
24%
16%
29%
28%
157
flagthe Philippines
23%
5%
41%
29%
17
flagAustralia
23%
23%
38%
15%
13
flagPoland
21%
18%
29%
30%
6624
flagthe United Kingdom
20%
20%
34%
23%
43
flagUkraine
19%
19%
33%
28%
21
flagCanada
16%
8%
33%
41%
12