Soil & potting mix
Best soil for Malabar Quisqualis (Quisqualis malabarica)
Also called Malabar Quisqualis, Malabar Rangoon Creeper.
More about malabar quisqualis
About Malabar Quisqualis
Quisqualis malabarica · also called Malabar Quisqualis, Malabar Rangoon Creeper · tropical
Malabar Quisqualis is a vigorous climbing shrub endemic to the Western Ghats of Kerala, India. It bears oblong leaves and reddish, fragrant flowers in terminal cymes, closely related to the Rangoon Creeper. Best grown on a trellis or pergola in full tropical sun with well-drained fertile soil and regular water. Not frost-hardy.
Preferred mix: Well-draining, fertile loam
Watch for — Root rot in poor drainage: Waterlogged soil causes rapid root rot, particularly in cooler temperatures. Plant in raised beds or add coarse grit to heavy soils to ensure rapid drainage after rain.
Why malabar quisqualis needs this mix
Malabar Quisqualis is an easy-going houseplant — it just wants a free-draining general mix that holds some moisture but never stays soggy.
- Malabar Quisqualis is adaptable, but like most houseplants it still needs air at the roots — a mix that drains freely while holding a working moisture reserve.
- A little perlite or bark stops ordinary compost compacting into an airless block over time, which is the slow, common cause of decline.
- It is not fussy about pH or special ingredients; getting the air-to-moisture balance right is what matters.
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 malabar quisqualis struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates malabar quisqualis's roots.
- A pure peat mix that dries to a hard, water-repelling block is hard to re-wet and stresses the plant.
- No drainage hole turns even a good mix into a stagnant, root-rotting sump.
Reusing tired, compacted old compost or skipping the perlite. A free-draining mix in a pot with a hole solves most "why is it struggling" cases for malabar quisqualis.
pH — does it matter for malabar quisqualis?
Malabar Quisqualis is not fussy about pH — a slightly acidic to neutral mix (around pH 6.0-7.0), which a standard peat-free compost provides, is perfectly fine. No testing needed.
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 decent bagged houseplant compost works for malabar quisqualis as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
Drainage and the pot
A pot with a drainage hole and a saucer you empty after watering is all malabar quisqualis needs — the free-draining mix does the rest.
Refresh malabar quisqualis's mix every 18-24 months; even good compost slumps and compacts, and fresh, airy mix is often the simplest fix for a tired plant. When the time comes, our repotting guide for malabar quisqualis covers the timing and technique step by step.
Malabar Quisqualis soil — frequently asked questions
What is the best soil mix for malabar quisqualis?
3 parts peat-free houseplant compost : 1 part perlite : 1 part orchid bark or coco chips (optional). Malabar Quisqualis is adaptable, but like most houseplants it still needs air at the roots — a mix that drains freely while holding a working moisture reserve.
Can I use normal potting soil for malabar quisqualis?
Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates malabar quisqualis's roots. A decent bagged houseplant compost works for malabar quisqualis as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
Does malabar quisqualis need a special pH?
Malabar Quisqualis is not fussy about pH — a slightly acidic to neutral mix (around pH 6.0-7.0), which a standard peat-free compost provides, is perfectly fine. No testing needed.
Should I buy a bagged mix or make my own for malabar quisqualis?
A decent bagged houseplant compost works for malabar quisqualis as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
How often should I refresh the soil for malabar quisqualis?
Refresh malabar quisqualis's mix every 18-24 months; even good compost slumps and compacts, and fresh, airy mix is often the simplest fix for a tired plant. A pot with a drainage hole and a saucer you empty after watering is all malabar quisqualis needs — the free-draining mix does the rest.
Keep reading
- Malabar Quisqualis care — the full brief (light, water, humidity, problems, pet safety)
- How often to water malabar quisqualis — the schedule the mix feeds into
- Repotting malabar quisqualis — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Should I water my plant? The simple check first
- Overwatered plant — signs and recovery
- Root rot — how the wrong soil starts it, and how to save the plant
- Best soil for anthurium faustomirandae
- Best soil for anthurium arisaemoides
- Best soil for anthurium clidemioides
- All 8452 soil and potting-mix guides in the Growli library