Because they had no root. — Or, as in Luke 8:6, “because they lacked moisture.” The growth had been over-rapid, and the presence of the underlying rock at once made the heat more intense, and deprived the plant of the conditions of resistance.
Related Commentaries of Matthew 13:6
Matthew 13:6
6 And when the sun was up, they were scorched; and because they had no root, they withered away.