Fertilising guide
How to fertilise Euphorbia lactea 'White Ghost' (Euphorbia lactea 'White Ghost')— schedule & NPK
Also called white ghost euphorbia, ghost cactus.
More about euphorbia lactea 'white ghost'
About Euphorbia lactea 'White Ghost'
Euphorbia lactea 'White Ghost' · also called white ghost euphorbia, ghost cactus · houseplant
Euphorbia lactea 'White Ghost' is a near-albino cultivar prized for its ghostly white, candelabra-branched stems with faint grey marbling. Lacking chlorophyll in much of its tissue, it grows slowly and needs strong light to survive. Treat it as a desert succulent: gritty soil, sparing water, and warmth above 10C year-round.
Growth habit: Slow-growing, upright shrubby succulent with flattened, crested or candelabra-like branching stems in chalky white with grey marbling; often grafted onto a green Euphorbia rootstock to supply energy.
Watch for — Irritant latex sap: Any cut releases a copious milky latex that burns skin and eyes. Always wear gloves and eye protection, and rinse immediately if sap contacts skin.
What fertiliser euphorbia lactea 'white ghost' actually wants — and why
Euphorbia lactea 'White Ghost' 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 euphorbia lactea 'white ghost': 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 euphorbia lactea 'white ghost', 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 euphorbia lactea 'white ghost':
Feed monthly through spring and summer with a balanced cactus fertiliser diluted to half strength. Stop feeding entirely in autumn and winter while the plant rests. 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 euphorbia lactea 'white ghost' 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 euphorbia lactea 'white ghost'
Quarter to half strength at most for euphorbia lactea 'white ghost'. 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 euphorbia lactea 'white ghost' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the euphorbia lactea 'white ghost' watering schedule.
Signs you are over-feeding euphorbia lactea 'white ghost'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for euphorbia lactea 'white ghost':
- 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 euphorbia lactea 'white ghost'
- 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 euphorbia lactea 'white ghost' 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 euphorbia lactea 'white ghost' until it drains clear, and refresh the gritty mix every 2-3 years.
Organic vs synthetic feeds for euphorbia lactea 'white ghost'
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 euphorbia lactea 'white ghost' — frequently asked questions
What fertiliser does euphorbia lactea 'white ghost' 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. Euphorbia lactea 'White Ghost' 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 euphorbia lactea 'white ghost'?
Feed monthly through spring and summer with a balanced cactus fertiliser diluted to half strength. Stop feeding entirely in autumn and winter while the plant rests. Feed monthly through spring and summer with a balanced cactus fertiliser diluted to half strength. Stop feeding entirely in autumn and winter while the plant rests. 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 euphorbia lactea 'white ghost'?
Quarter to half strength at most for euphorbia lactea 'white ghost'. Succulents take up very little, and a strong dose burns the fine roots before the plant can use it.
What does over-feeding euphorbia lactea 'white ghost' 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 euphorbia lactea 'white ghost' 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 euphorbia lactea 'white ghost'?
Feed lightly enough and you rarely need to flush, but once a year run plain water through the pot of euphorbia lactea 'white ghost' until it drains clear, and refresh the gritty mix every 2-3 years.
Keep reading
- Euphorbia lactea 'White Ghost' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water euphorbia lactea 'white ghost' — 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 5561 fertilising guides in the Growli library