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Shallow.
shallow roots extend away from a plant long; thinck roots that grow deep
The roots of the rose of Sharon typically grow shallow, spreading out horizontally rather than deep into the ground. They are generally found within the top few inches of soil.
your question is vague however relative to tap roots they are shallow. again alot depends on which plant. depth is proportional to bio mass.
The roots of an Eastern Hemlock grow shallow according to a document from Canada's Sir Sanford Fleming College. The document can be found at http://www.lrconline.com/Extension_Notes_English/pdf/hmlck.pdf
yes
yes
Dig down a few inches, and you will find the ground is permanently frozen (Permafrost). Deep roots cannot grow in ice, so they stay shallow.
The plant develops deep, slender, black roots
The plant develops deep, slender, black roots
yes, they do
The plant develops deep, slender, black roots