Soil & potting mix
Best soil for Peacock Plant (Calathea makoyana)
Also called Peacock Plant, Cathedral Windows, Brain Plant, Goeppertia makoyana.
More about peacock plant
About Peacock Plant
Calathea makoyana · also called Peacock Plant, Cathedral Windows · houseplant
Calathea makoyana (syn. Goeppertia makoyana) is a Brazilian rainforest prayer plant famed for translucent leaves painted with dark ovals on pale green, with deep purple undersides visible as the leaves fold upward at night. High humidity above 60 percent and soft, room-temperature water are its non-negotiable requirements. Pet-safe per the ASPCA.
Preferred mix: Light, peat-free, free-draining mix high in organic matter
Why peacock plant needs this mix
Peacock Plant is an easy-going houseplant — it just wants a free-draining general mix that holds some moisture but never stays soggy.
- Peacock Plant 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 peacock plant 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 peacock plant'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 peacock plant.
pH — does it matter for peacock plant?
Peacock Plant 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 peacock plant 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 peacock plant needs — the free-draining mix does the rest.
Refresh peacock plant'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 peacock plant covers the timing and technique step by step.
Peacock Plant soil — frequently asked questions
What is the best soil mix for peacock plant?
3 parts peat-free houseplant compost : 1 part perlite : 1 part orchid bark or coco chips (optional). Peacock Plant 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 peacock plant?
Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates peacock plant's roots. A decent bagged houseplant compost works for peacock plant 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 peacock plant need a special pH?
Peacock Plant 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 peacock plant?
A decent bagged houseplant compost works for peacock plant 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 peacock plant?
Refresh peacock plant'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 peacock plant needs — the free-draining mix does the rest.
Keep reading
- Peacock Plant care — the full brief (light, water, humidity, problems, pet safety)
- How often to water peacock plant — the schedule the mix feeds into
- Repotting peacock plant — 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 pilea pubescens 'silver cloud'
- Best soil for pilea libanensis
- Best soil for pilea involucrata 'norfolk'
- All 6887 soil and potting-mix guides in the Growli library