Soil & potting mix
Best soil for ZZ Plant Raven (Zamioculcas zamiifolia 'Raven')
Also called Raven ZZ Plant, Black ZZ Plant, Black Raven ZZ.
More about zz plant raven
About ZZ Plant Raven
Zamioculcas zamiifolia 'Raven' · also called Raven ZZ Plant, Black ZZ Plant · houseplant
ZZ Plant 'Raven' is a dramatic cultivar of Zamioculcas zamiifolia whose new leaves emerge bright lime green then mature to a deep, glossy near-black purple. It keeps the species' famous toughness, storing water in fat underground rhizomes to survive drought and low light, making it a striking, almost indestructible statement houseplant.
Preferred mix: Well-draining houseplant or cactus-amended mix
Watch for — Yellowing leaves from overwatering: The classic ZZ complaint; soggy soil rots the rhizomes and yellows the stems. Let the mix dry well between waterings and ensure the pot drains freely.
Why zz plant raven needs this mix
ZZ Plant Raven stores water in its leaves and stems, so it wants a free-draining, gritty mix that dries out fully between waterings — not a moisture-holding one.
- ZZ Plant Raven carries its own water supply in its thick tissue, so the soil's job is to drain fast and then get out of the way.
- Its roots are adapted to short wet spells followed by long dry ones — a mix that stays damp removes the dry phase they depend on.
- A gritty mix also keeps the plant compact and well-coloured rather than soft, leggy and prone to collapse.
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 zz plant raven struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- Standard potting compost on its own stays wet far too long for zz plant raven; the lower leaves and stem base go soft and translucent first.
- Big plastic pots full of dense mix hold a wet core long after the surface looks dry — that hidden wet zone is where rot starts.
- Anything sold as "moisture control" is the opposite of what this plant wants.
Treating zz plant raven like a leafy houseplant and using plain compost. It needs at least half its volume as grit, perlite or pumice to survive long term.
pH — does it matter for zz plant raven?
pH is not a concern for zz plant raven — anything from mildly acidic to neutral (6.0-7.0) works. Get the drainage right and pH looks after itself.
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 good bagged "cactus and succulent" mix works for zz plant raven if you add roughly 30-50% extra perlite or grit. Mixing your own from the ratio above gives you full control of how fast it dries.
Drainage and the pot
Use a pot with a drainage hole and empty the saucer within minutes of watering. Terracotta is more forgiving than glazed or plastic because it dries the rootball faster.
This mix decomposes slowly, so zz plant raven only needs repotting every 2-3 years — mainly to refresh the grit and check the roots are firm and pale. When the time comes, our repotting guide for zz plant raven covers the timing and technique step by step.
ZZ Plant Raven soil — frequently asked questions
What is the best soil mix for zz plant raven?
2 parts standard cactus or succulent compost : 1 part perlite or pumice : 1 part coarse grit or coarse sand. ZZ Plant Raven carries its own water supply in its thick tissue, so the soil's job is to drain fast and then get out of the way.
Can I use normal potting soil for zz plant raven?
Standard potting compost on its own stays wet far too long for zz plant raven; the lower leaves and stem base go soft and translucent first. A good bagged "cactus and succulent" mix works for zz plant raven if you add roughly 30-50% extra perlite or grit. Mixing your own from the ratio above gives you full control of how fast it dries.
Does zz plant raven need a special pH?
pH is not a concern for zz plant raven — anything from mildly acidic to neutral (6.0-7.0) works. Get the drainage right and pH looks after itself.
Should I buy a bagged mix or make my own for zz plant raven?
A good bagged "cactus and succulent" mix works for zz plant raven if you add roughly 30-50% extra perlite or grit. Mixing your own from the ratio above gives you full control of how fast it dries.
How often should I refresh the soil for zz plant raven?
This mix decomposes slowly, so zz plant raven only needs repotting every 2-3 years — mainly to refresh the grit and check the roots are firm and pale. Use a pot with a drainage hole and empty the saucer within minutes of watering. Terracotta is more forgiving than glazed or plastic because it dries the rootball faster.
Keep reading
- ZZ Plant Raven care — the full brief (light, water, humidity, problems, pet safety)
- How often to water zz plant raven — the schedule the mix feeds into
- Repotting zz plant raven — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- How often to water succulents — the soak-and-dry method
- Overwatered plant — signs and recovery
- Root rot — how the wrong soil starts it, and how to save the plant
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