By Drainproblem
Australia 
our house has a solanum jasminoides growing over the underground clay sewer pipes. how deep do the roots grow
11 Mar, 2012
Answers
In my experience, around 30-50 cm deep, possibly deeper in sandy soils. They usually are mostly fibrous, though, and not usually pipe-breakers. They could block the drainage if they found an opening, though.
13 Mar, 2012
Given that it can grow to 4 metres in height I would expect it to be a deep rooted plant. Scroll down to the bottom of the page and click on 'S' then on the actual plant for more info
11 Mar, 2012