In the metro Phoenix area, you'll need to plant Pink Bower Vine in partial shade so on your lattice may not be the ideal exposure. If you like the look of this vine, you will love Pink Trumpet Vine (Podranea ricasoliana) which has similar pink tubular flowers and bright green leaves. Pink Trumpet Vine grows at a moderate rate to 20 x 10 and its flowers are lightly scented and appear from spring through fall. Hummingbirds are attracted to the flowers. I've grown one on a western exposure right against a wall and another grew over a lattice patio cover on the west. Very drought tolerant. It can easily be confused with Pandorea (Bower vine), so look for the botanical name.

You might also consider Lilac Vine (Hardenbergia violacea) which is evergreen and produces clusters of tiny purple flowers in late winter to early spring, or Lady Banks Rose - a thornless evergreen vine with clusters of either white or yellow flowers in the spring. It requires little maintenance and will grow to 20' x 15'. This is the same rose as the famous Tombstone Rose.

All these vines, including the Potato Vine, are listed in the new FREE booklet - Landscape Plants for the Arizona Desert. You can contact the City of Mesa water conservation office to request a copy 480-644-3306.

Hope this helps.