Q.My 20 year old Trumpet vine is not growing any leaves this summer. There are only a few new ones.
There has never been a problem with this plant. This spring/Summer, only a few green leaves are on the top of the trellis. All of the other “vines” are just brown. Should I trim off all of the brown vines? Are they dead? I would guess that 95% of the plant is brown. Should I trim it now? June. Or wait until fall? Please help, as this was once a beautiful plant that the hummingbirds loved. Should I get rid of the whole plant and plant a new one? The trunks are at least 5″ to 6″ around.

Certified GKH Gardening Expert
I suggest cutting to within a few inches of the ground. It's a fast grower, so if it's still alive, it should regrow quickly. 20 years is a long time. It may just have fizzled out. Another great hummingbird vine is the trumpet honeysuckle (Lonicera sempervirens). It blooms from spring to fall and is not invasive.
https://www.gardeningknowhow.com/ornamental/vines/honeysuckle/coral-honeysuckle-in-gardens.htm
https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/growing-trumpet-vines.htm