Holly, red bud and such.
We bought a house that the previous owners planted red bud, holly, juniper and other bushes around the house. Year after year we trimmed them to size, now they have trunks as big as my arm or leg. If left alone they would grow 10ft high. I want them gone. I tried to pull them out when the ground was saturated and kept breaking the cable or the car wheels would slip. So I cut them all off at the base with a chain saw but the red bids are spreading like weeds, little clumps of them. How can I kill these bushes for good. We want to plant some small colorful bushes in front of the house. So I have to dig the roots up?