Fertilising guide
How to fertilise Cushion Aloe Haworthia (Haworthia cymbiformis)— schedule & NPK
Also called Window haworthia, Boat-leaved haworthia, Cushion aloe.
More about cushion aloe haworthia
About Cushion Aloe Haworthia
Haworthia cymbiformis · also called Window haworthia, Boat-leaved haworthia · houseplant
Haworthia cymbiformis forms soft, plump rosettes of boat-shaped, translucent green leaves and offsets generously into low cushions. One of the easiest haworthias, it tolerates lower light than most and stays compact, making it a forgiving windowsill succulent. Give it bright indirect light, gritty soil, and a deep soak only when fully dry.
Growth habit: Fast-clumping rosette succulent that offsets prolifically into spreading cushions of soft, boat-shaped translucent leaves. One of the more vigorous, easy-going haworthias.
Watch for — Sunburn: Direct sun bleaches or browns the soft leaves. Provide bright but filtered light, especially through summer afternoons.
What fertiliser cushion aloe haworthia actually wants — and why
Cushion Aloe Haworthia is a light-feeding succulent — a gentle, low-nitrogen feed a few times in growth keeps it plump without forcing the weak, stretched growth over-feeding causes.
A cactus and succulent formula or a diluted balanced feed with modest, even numbers. Avoid high-nitrogen plant foods — they make a succulent etiolate and grow soft, fracture-prone tissue.
For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for cushion aloe haworthia: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.
How often to feed cushion aloe haworthia, and which months
Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For cushion aloe haworthia:
Feed monthly through spring and summer with a balanced succulent fertiliser at half or quarter strength. No feeding in autumn and winter. This vigorous offsetter needs little; over-feeding produces soft, floppy growth prone to rot. Keep that to monthly between spring through early autumn (roughly March to September) and stop entirely once growth slows for winter.
The dormant-season rule matters more than the exact interval: skip feeding entirely when cushion aloe haworthia is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.
What strength to mix for cushion aloe haworthia
Quarter to half strength at most for cushion aloe haworthia. Succulents take up very little, and a strong dose burns the fine roots before the plant can use it.
Feeding always goes onto already-damp soil, never dry roots — water cushion aloe haworthia first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the cushion aloe haworthia watering schedule.
Signs you are over-feeding cushion aloe haworthia
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for cushion aloe haworthia:
- Stretched, leggy, pale growth with widely spaced leaves.
- A white salt crust on the soil or around the pot rim.
- Brown, crisped leaf tips and edges.
- Soft, mushy tissue at the base — over-feeding plus damp soil rots it.
Signs you are under-feeding cushion aloe haworthia
- Uncommon — succulents tolerate lean conditions well.
- Very slow growth and dull, faded colour over a long period.
- Older leaves shed faster than new ones replace them in a tired old mix.
If the symptoms point at watering, light or roots rather than nutrition, the full cushion aloe haworthia care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Feed lightly enough and you rarely need to flush, but once a year run plain water through the pot of cushion aloe haworthia until it drains clear, and refresh the gritty mix every 2-3 years.
Organic vs synthetic feeds for cushion aloe haworthia
Organic options
A heavily diluted seaweed or worm-casting feed once or twice in summer. UK: a drop of Westland seaweed feed; US: quarter-strength Espoma Cactus! or Dr. Earth liquid. Fresh free-draining mix matters more than any feed.
Synthetic / liquid feeds
A dedicated cactus/succulent liquid at quarter to half strength — UK: Baby Bio Cacti & Succulent Drip Feeders or Westland; US: Miracle-Gro Succulent Plant Food or Schultz Cactus Plus.
Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.
Fertilising cushion aloe haworthia — frequently asked questions
What fertiliser does cushion aloe haworthia need?
A cactus and succulent formula or a diluted balanced feed with modest, even numbers. Avoid high-nitrogen plant foods — they make a succulent etiolate and grow soft, fracture-prone tissue. Cushion Aloe Haworthia is a light-feeding succulent — a gentle, low-nitrogen feed a few times in growth keeps it plump without forcing the weak, stretched growth over-feeding causes.
How often should I feed cushion aloe haworthia?
Feed monthly through spring and summer with a balanced succulent fertiliser at half or quarter strength. No feeding in autumn and winter. This vigorous offsetter needs little; over-feeding produces soft, floppy growth prone to rot. Feed monthly through spring and summer with a balanced succulent fertiliser at half or quarter strength. No feeding in autumn and winter. This vigorous offsetter needs little; over-feeding produces soft, floppy growth prone to rot. Keep that to monthly between spring through early autumn (roughly March to September) and stop entirely once growth slows for winter.
What strength of feed for cushion aloe haworthia?
Quarter to half strength at most for cushion aloe haworthia. Succulents take up very little, and a strong dose burns the fine roots before the plant can use it.
What does over-feeding cushion aloe haworthia look like?
Stretched, leggy, pale growth with widely spaced leaves. A white salt crust on the soil or around the pot rim. Brown, crisped leaf tips and edges. Soft, mushy tissue at the base — over-feeding plus damp soil rots it. Feeding cushion aloe haworthia like a leafy houseplant is the classic error — it produces a flush of pale, stretched, floppy growth that never firms up and is prone to rot at the base.
Should I flush the soil of cushion aloe haworthia?
Feed lightly enough and you rarely need to flush, but once a year run plain water through the pot of cushion aloe haworthia until it drains clear, and refresh the gritty mix every 2-3 years.
Keep reading
- Cushion Aloe Haworthia care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water cushion aloe haworthia — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise snake plant
- How to fertilise dracaena
- How to fertilise peperomia
- All 2464 fertilising guides in the Growli library