Hoya dying
Before anything else, find out whether the plant is actually dying. A hoya can look finished from above and still be perfectly alive below, and the checks below tell you which situation you are in before you decide whether to intervene or to start again from a cutting.
What is specific to this plant
- Hoyas are epiphytes with thick waxy leaves that store water, so they want to dry out far more than their leafy neighbours do.
- Do not cut off the bare stalk a flower cluster came from. Hoyas rebloom from the same spur for years, and removing it costs you next year's flowers.
- Long bare vine with no leaves is normal growth reaching for support, not a symptom.
What it could be, and how to tell
These look alike in a photograph, so each one below lists what you would ALSO see if that is the cause. Work down the list and stop at the one where the other symptoms match too.
1. A long bare vine read as a dead plant
What else you would see
- a length of stem with no leaves on it at all, reaching away from the pot
- the vine itself firm and green rather than dry or brittle
- healthy leaves further back toward the base
- the bare section pointing toward a window or into open space
What to do
- Leave any firm green vine on the plant however bare it looks.
- Give it something to wind around, which is what triggers it to leaf out along the runner.
- Cut back only what is dry and brittle when bent.
2. Overwatering, and the root rot that follows
What else you would see
- yellowing that starts on the lowest, oldest leaves and works upward
- stems soft or dark at the soil line, sometimes with a sour smell
- soil or mix still wet several days after watering, when this much should have dried: most of the pot
- small flies around the pot, which breed only in constantly wet soil
What to do
- Stop watering and let it dry down this far: most of the pot.
- Check that the pot drains and empty any saucer or decorative outer pot it sits in. Water held out of sight keeps the mix wet whatever you change above it, and it stays invisible until you lift the pot.
- If the roots are soft and brown, trim them back to firm tissue with a blade sterilised first and repot into fresh chunky, very free-draining mix.
3. Underwatering
What else you would see
- leaf edges dry, thin or crisp rather than limp
- soil shrunk away from the side of the pot, and a pot that is light to lift
- the whole plant flagging at once rather than one leaf at a time
What to do
- Water thoroughly until it runs freely from the drainage holes, rather than a splash at the surface.
- If the mix has gone water-repellent and the water runs straight through, stand the pot in a basin of water for half an hour to rewet it properly.
- Water on dryness rather than on a fixed day of the week, and this is how far it should dry: most of the pot.
4. Not enough light
What else you would see
- long bare stretches of stem between the leaves
- each new leaf smaller than the last
- lower leaves shed while the growing tip carries on
What to do
- Move it to bright indirect light, with some direct sun tolerated.
- Cut back the stretched growth. It will not compact again on its own, and cutting back is what triggers branching.
- Turn the pot every couple of weeks so it grows evenly.
5. Cold or a draught
What else you would see
- damage that appeared within a few days of a cold snap, or of the heating or air conditioning coming on
- the plant sits near a window, an exterior door or a vent
- the damage is worst on the side facing the cold
What to do
- Move the plant away from the glass, the door or the vent.
- Damaged tissue will not recover. Leave it unless it turns soft, which is the point at which it can start to rot.
6. Spider mites
What else you would see
- fine pale stippling or speckling across the leaf rather than solid patches
- very fine webbing where the leaf meets the stem
- a dusty look to the underside of the leaf, worst in warm dry air
What to do
- Isolate the plant from your others straight away, before anything else.
- Rinse the leaves thoroughly, undersides included, with a strong spray of water, and repeat every few days. Mites breed faster than a single treatment can keep up with.
- Raise the humidity around the plant. Mites thrive in warm dry air and struggle in humid air.
- If you choose to use a treatment product, follow the label on it exactly. The label is the legal instruction and it overrides anything written here.
7. Rootbound, or soil that is worn out
What else you would see
- roots circling the inside of the pot or escaping the drainage holes
- water running straight through with almost no absorption
- two or more years in the same pot, and smaller new growth each season
What to do
- Repot one size up in spring into fresh chunky, very free-draining mix, teasing the outer roots loose.
- Feed during the growing season, following the instructions on the label of whatever you buy.
Common questions
How do I tell if my hoya is dead or just struggling?
Look below the foliage. Firm roots that are fine and firm, and a firm stem or base, mean a living plant that can regrow even if it is bare. Everything soft, brown and collapsing means the plant has gone, and the honest answer is to start again.
Is it worth taking cuttings?
Often, and sooner rather than later. If any stem is still firm and green, a cutting taken now has a far better chance than the parent does, and it costs you nothing to try both at once.
Should I repot a plant that is struggling?
Only if the roots are the problem. Repotting is stressful and a plant that is struggling for light or water does not benefit from it. If the roots are rotting, repotting is the treatment rather than an extra stress.
Before you act on any of this
This is general plant care guidance for a plant, not advice about people or animals. We never tell you whether a plant is safe to eat or touch, and we never tell you a plant is safe for a child or a pet. If a child or animal may have eaten any part of a plant, contact Poison Control (US 1-800-222-1222) or a vet immediately rather than reading further.
Treatment advice here is deliberately category level. We do not give product names, mixing ratios or application intervals. Whatever the label on the product in your hand says is the instruction that counts, and following it is your responsibility.
Where this comes from
The general horticultural facts behind this differential come from published university extension and Royal Horticultural Society guidance. What is specific to this plant, and the order the causes are ranked in, is ours, and the methodology page says where that reasoning stops being reliable.
- Root Rots on HouseplantsUniversity of Wisconsin-Madison Division of Extension
- Indoor Plants: WateringClemson Cooperative Extension Home and Garden Information Center
- Low Light Impacts on Indoor PlantsUniversity of Maryland Extension
- Diagnosing Houseplant Problems from Improper Environmental ConditionsIowa State University Extension and Outreach
- Glasshouse red spider miteRoyal Horticultural Society
Other hoya problems
Not sure which one it is?
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