Soil & potting mix
Best soil for Aeschynanthus tricolor (Aeschynanthus tricolor)
Also called tricolor lipstick plant, three-colour aeschynanthus.
More about aeschynanthus tricolor
About Aeschynanthus tricolor
Aeschynanthus tricolor · also called tricolor lipstick plant, three-colour aeschynanthus · flowering
Aeschynanthus tricolor is a trailing Bornean lipstick plant in the gesneriad family, grown for striking tubular red flowers marked with yellow and dark maroon-black stripes. A warm-growing epiphyte, it thrives in bright indirect light, high humidity, and a fast-draining mix, cascading beautifully from a hanging basket. Crucially, the whole Aeschynanthus genus is ASPCA non-toxic to cats and dogs.
Preferred mix: Light, free-draining epiphytic mix
Watch for — Root rot: From a dense mix or standing water. Use an open epiphytic mix and let the surface dry between waterings.
Why aeschynanthus tricolor needs this mix
Aeschynanthus tricolor drinks mostly through its central cup, not its roots — so it wants a light, open, fast-draining bark mix and only a shallow pot.
- Aeschynanthus tricolor is an epiphyte: its small root system mainly clings on, while the rosette "tank" does the drinking — so the mix only needs to anchor it and breathe.
- An open bark mix lets the few roots get air and dries fast, mimicking the tree-fork or rock crevice it grows in naturally.
- Because the cup feeds it, a soggy root zone gives no benefit and only invites base rot.
For the full picture on what makes up a good mix, see our guide to the main types of soil and potting media — it explains why each ingredient above behaves the way it does.
What goes wrong with the wrong mix
The wrong soil is one of the most common reasons aeschynanthus tricolor struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- Dense, water-holding compost rots aeschynanthus tricolor at the base where the leaves meet the soil — the rosette can look fine while the crown is already failing.
- A deep pot full of mix stays wet in the middle long after the surface dries; bromeliad roots are too shallow to ever use it.
- Garden topsoil compacts and starves the few roots of air.
Potting aeschynanthus tricolor deep in ordinary compost as if the roots do the feeding. Use a shallow pot of open bark mix and keep the soil only barely moist.
pH — does it matter for aeschynanthus tricolor?
Aeschynanthus tricolor likes a slightly acidic mix (around pH 5.0-6.0), which a bark-based blend gives naturally. Cup-water quality matters more than soil pH — use rain or filtered water.
If you want to check or adjust it, the soil pH guide walks through testing and the safe ways to nudge a mix more acidic or more alkaline.
DIY mix vs a bagged one
A bagged epiphytic or orchid mix works well for aeschynanthus tricolor with a little extra perlite. The DIY ratio above is easy and cheap if you already keep orchids.
Drainage and the pot
A shallow, well-drained pot is ideal — the rootball should never sit in water. Keep the central cup topped up instead; that is how the plant actually drinks.
Aeschynanthus tricolor rarely needs repotting — it flowers once then produces pups. Move pups to fresh bark mix; bark breakdown is slow enough that the parent rarely needs it. When the time comes, our repotting guide for aeschynanthus tricolor covers the timing and technique step by step.
Aeschynanthus tricolor soil — frequently asked questions
What is the best soil mix for aeschynanthus tricolor?
2 parts orchid bark or coarse epiphytic mix : 1 part perlite : 1 part peat-free compost. Aeschynanthus tricolor is an epiphyte: its small root system mainly clings on, while the rosette "tank" does the drinking — so the mix only needs to anchor it and breathe.
Can I use normal potting soil for aeschynanthus tricolor?
Dense, water-holding compost rots aeschynanthus tricolor at the base where the leaves meet the soil — the rosette can look fine while the crown is already failing. A bagged epiphytic or orchid mix works well for aeschynanthus tricolor with a little extra perlite. The DIY ratio above is easy and cheap if you already keep orchids.
Does aeschynanthus tricolor need a special pH?
Aeschynanthus tricolor likes a slightly acidic mix (around pH 5.0-6.0), which a bark-based blend gives naturally. Cup-water quality matters more than soil pH — use rain or filtered water.
Should I buy a bagged mix or make my own for aeschynanthus tricolor?
A bagged epiphytic or orchid mix works well for aeschynanthus tricolor with a little extra perlite. The DIY ratio above is easy and cheap if you already keep orchids.
How often should I refresh the soil for aeschynanthus tricolor?
Aeschynanthus tricolor rarely needs repotting — it flowers once then produces pups. Move pups to fresh bark mix; bark breakdown is slow enough that the parent rarely needs it. A shallow, well-drained pot is ideal — the rootball should never sit in water. Keep the central cup topped up instead; that is how the plant actually drinks.
Keep reading
- Aeschynanthus tricolor care — the full brief (light, water, humidity, problems, pet safety)
- How often to water aeschynanthus tricolor — the schedule the mix feeds into
- Repotting aeschynanthus tricolor — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Root rot — how the wrong soil starts it, and how to save the plant
- Overwatered plant — signs and recovery
- Why is my plant wilting? Wet vs dry diagnosis
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