When you plant its seeds, they sprout like weeds, providing an abundance of seedlings for rootstock.
(you; plant; its seeds) (they; sprout; T:When you plant its seeds) Context(they sprout,List([26, 37))):(they; sprout providing; an abundance of seedlings for rootstock)
they sprout,List([26, 37))
you they they
plant sprout sprout providing
its seeds
T:When you plant its seeds
an abundance of seedlings for rootstock