How can I restore my 2 metre Kentia Palm back to dark green? It lives on a covered deck so the sunlight is filtered but it gets very warm and dry during the day and colder at night. It was repotted into a ceramic pot with a mixture of potting mix and pumice sand but has gone down hill ever since. I mistakenly thought it was too tight in its PB bag when I purchased it. I water approx. every fortnight in winter and weekly in summer and water the foliage at the same time. I gave it a dose of diluted Epsom Salts but haven't seen a noticeable difference.
Restore Kentia Palm Back to Dark Green
Certified GKH Gardening Expert
Be careful not to overwater your Kentia Palm, only water when the top inch or so has dried out.
Don't water on a schedule, make sure you check the soil.
Also humidity is very important, misting the palm will help.
Do not over fertilize, this to can do damage to the plant.
If you see signs on insects or other disease, treat with Neem Oil.
Here are some links with more information.