My hoya plant has some yellow/brown tips. Is it due to over watering?
I think it has more to do with a fertilizerPlants need fertilizer only when they are actively growing. Slow growing plants in low light require very little plant food. Too much fertilizer is worse than not enough. Most plants prefer a water soluble plant food at 1/2 the recommended strength. Plants that are in bloom or dormant should not be fertilized. Houseplant food contains nitrogen (N), phosphorus (P), and potassium (K). A fertilizer containing these elements in equal proportion is considered a balanced plant food. Nitrogen helps in photosynthesis and encourages the growth of leaves and stems. Potassium and phosphorus also help in photosynthesis and aid in root and flower development. Most fertilizers have trace elements of other minerals that are lacking in the soil but are necessary for good plant growth. Fertilizers have a high salt content. If a plant is not producing new leaves and doesn’t absorb the fertilizer, salts build up in the soil. These salts can burn the roots, discolor the leaves, and cause new growth to be small. issue. I don’t know your feeding schedule but here’s what I’d recommend doing.
Spray the entire plant with a solution of one or two tablespoons of fish emulsion mixed with a gallon of warm water. Don’t drench the plant, just lightly mist it. Do this weekly for about a month, then go back to a regular feeding schedule. That would be fertilizing your hoya with a well balanced plant food diluted to 1/2 the recommended strength whenever it is actively producing new leaves.