I'm thinking of putting crossvine in my backyard to cover the south
facing wall that gets full sun during summer. I'm hoping the crossvine
can cling to the brick and mortar back wall of my house without the
need for a trelis. I've read on the net that crossvine does not
require a trelis/trellis. I called a gardening place and they said
that it does require a trelis. Can anybody who has this vine tell me
who is right ?
Thanks in adv

br