Good Morning Trese,

Thank you for contacting Ask Extension with your question about your silver lace vine.  I can understand your frustration with your plants not being able to grow.  This plant enjoys moist well drained soil but can tolerate some drought.  Both drought or drowning can cause damage to the plant.  The dry dead ends of the plant can indicate drought and the leaf curling could be the plants defense to conserve moisture.  You can check the soil moisture with a houseplant moisture meter or insert a long narrow probe into the soil such as a screw driver.  It should go in easily if the soil is moist.  Compacted wet clay soil could reduce the oxygen available to the plant and cause drowning.

I am sending some information about silver lace vine, how to water a landscape during drought, mulch and environmental disorders of woody plants.  I would suggest keeping your current plants, trim off the damaged stems and monitor the soil moisture. You could also try putting some mulch around your plants to moderate soil temperatures and conserve moisture.   If you have landscape fabric near your plants that should be removed to allow moisture and air exchange to the roots.   Silver lace vine can be rooted by taking cuttings.

https://web.extension.illinois.edu/hortanswers/plantdetail.cfm?PlantID=521&PlantTypeID=5

https://woodyplants.cals.cornell.edu/plant/185

https://extension.colostate.edu/topic-areas/yard-garden/environmental-disorders-of-woody-plants-2-932/#:~:text=The%20five%20most%20common%20temperature,and%20winter%20(cold)%20damage.

https://extension.colostate.edu/topic-areas/yard-garden/mulches-for-home-grounds-7-214/

https://extension.colostate.edu/topic-areas/yard-garden/watering-a-home-landscape-during-drought-7-240-2/

Fire blight affects trees and shrubs in the rose family, silver lace vine is not a member of the rose family so it is not susceptible to fire blight.

Regards,

Barb S.

El Paso County Colorado Master Gardener