Soil & potting mix
Best soil for Burrawang (Macrozamia communis)
Also called Burrawang, Burrawang Cycad, Common Zamia.
More about burrawang
About Burrawang
Macrozamia communis · also called Burrawang, Burrawang Cycad · tropical
Macrozamia communis is an Australian cycad native to coastal New South Wales, where it grows in dry sclerophyll forest understorey. It tolerates drought, poor soils, and deep shade once established, making it a resilient but very slow-growing ornamental. The single most important care fact is that it needs near-perfect drainage — waterlogged roots rot rapidly, often fatally. Highly toxic to dogs and cats (and humans); all parts contain cycasin and should be kept well away from pets and children.
Preferred mix: Coarse, free-draining sandy loam or cactus mix
Watch for — Caudex (crown) rot: The most common cause of death in cultivation. Caused by poorly draining soil or overwatering. Remove affected tissue, dust with sulphur fungicide, and repot into dry, gritty compost; do not water for two weeks.
Why burrawang needs this mix
Burrawang is an easy-going houseplant — it just wants a free-draining general mix that holds some moisture but never stays soggy.
- Burrawang 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 burrawang 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 burrawang'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 burrawang.
pH — does it matter for burrawang?
Burrawang 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 burrawang 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 burrawang needs — the free-draining mix does the rest.
Refresh burrawang'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 burrawang covers the timing and technique step by step.
Burrawang soil — frequently asked questions
What is the best soil mix for burrawang?
3 parts peat-free houseplant compost : 1 part perlite : 1 part orchid bark or coco chips (optional). Burrawang 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 burrawang?
Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates burrawang's roots. A decent bagged houseplant compost works for burrawang 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 burrawang need a special pH?
Burrawang 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 burrawang?
A decent bagged houseplant compost works for burrawang 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 burrawang?
Refresh burrawang'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 burrawang needs — the free-draining mix does the rest.
Keep reading
- Burrawang care — the full brief (light, water, humidity, problems, pet safety)
- How often to water burrawang — the schedule the mix feeds into
- Repotting burrawang — 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 schmitz's cycad
- Best soil for congo cycad
- Best soil for pogge's cycad
- All 10153 soil and potting-mix guides in the Growli library