How can I help my hibiscus plants?

Janet: maybe these will help

https://www.geraniumrozanne.com/beginners-guide-growing-hibiscus/

https://www.miraclegro.com/en-us/library/rose-flower-gardening/how-grow-hibiscus

https://www.hiddenvalleyhibiscus.com/care/hibiscusdoctor.htm

Thank you I will check out the info.

Hi Janet, here is a link to the Hibiscus Doctor, hope there is a solution there for you,

https://www.hiddenvalleyhibiscus.com/care/hibiscusdoctor.htm

Cut off any of the damaged parts. Try neem oil to help get rid of pests.

Do you think that a bug has caused the leaf damage?

Cut off and remove any damaged leaves, you might take a leaf to your local nursery along with a picture of the plant. They might be the ones to evaluate and tell you what is going on.

Here's a post that might help - https://www.organiclesson.com/hibiscus-plant-flower-care/

It looks like you waters in the sun the hot sun.

Hi Janet, not sure if you solved your hibiscus problem, but this site has a whole bunch of tips that might help -

https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/pests-on-hibiscus-plants.htm