Morning Glory Vines Losing Leaves

Q: This summer we had gorgeous morning glory vines on a trellis and on the
railings of our patio. They are losing leaves. Might I have overwatered? 

A: It is not your fault. Each year morning glory vines begin to decline in
September. If they are in full sun, they can lose a lot of leaves. Pull them out
when you can’t tolerate the rattiness. If you want to experiment with other
annual vines next year, cypress vine and cardinal climber have bright red
flowers and will take the heat plus bring in neighborhood hummingbirds.