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
flagKazakhstan
50%
7%
21%
21%
14
flagUkraine
41%
12%
24%
21%
79
flagNigeria
41%
25%
16%
16%
12
flagBelarus
40%
6%
33%
20%
15
flagRussia
32%
17%
36%
11%
52
flagPakistan
32%
10%
28%
28%
28
flagRepublic of Ireland
30%
15%
23%
30%
13
flagUnknown
27%
17%
24%
31%
29
flagthe United States
25%
12%
33%
27%
215
flagPoland
23%
17%
28%
30%
7321
flagIndia
23%
20%
27%
28%
188
flagthe Philippines
23%
5%
41%
29%
17
flagGermany
21%
14%
32%
29%
74
flagthe United Kingdom
21%
21%
35%
21%
56
flagCanada
16%
8%
33%
41%
12
flagAustria
11%
11%
42%
34%
26