Fertilising guide
How to fertilise Adromischus Maculatus (Adromischus maculatus)— schedule & NPK
Also called calico hearts, chocolate drops succulent.
More about adromischus maculatus
About Adromischus Maculatus
Adromischus maculatus · also called calico hearts, chocolate drops succulent · houseplant
Adromischus maculatus, known as calico hearts, is a compact South African succulent with flat, wedge-shaped grey-green leaves heavily blotched in chocolate-purple, edged by a fine horny rim. It stays small and slow, wanting strong light, sharply drained gritty soil and sparing water. A characterful, low-maintenance pick for bright windowsills.
Growth habit: Slow, low-spreading clumping succulent forming dense mounds of flat, fan-like leaves on short woody stems. Older plants throw up wiry stalks of small tubular greenish-pink flowers.
What fertiliser adromischus maculatus actually wants — and why
Adromischus Maculatus 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 adromischus maculatus: 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 adromischus maculatus, 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 adromischus maculatus:
A light feed once or twice through spring and summer with a half-strength balanced cactus fertiliser is plenty. It grows slowly and stores nutrients well, so excess feeding only produces soft, rot-prone growth. Withhold fertiliser entirely in the dormant cooler months. Keep that to sparingly through the growing season 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 adromischus maculatus 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 adromischus maculatus
Quarter to half strength at most for adromischus maculatus. 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 adromischus maculatus first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the adromischus maculatus watering schedule.
Signs you are over-feeding adromischus maculatus
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for adromischus maculatus:
- 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 adromischus maculatus
- 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 adromischus maculatus 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 adromischus maculatus until it drains clear, and refresh the gritty mix every 2-3 years.
Organic vs synthetic feeds for adromischus maculatus
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 adromischus maculatus — frequently asked questions
What fertiliser does adromischus maculatus 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. Adromischus Maculatus 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 adromischus maculatus?
A light feed once or twice through spring and summer with a half-strength balanced cactus fertiliser is plenty. It grows slowly and stores nutrients well, so excess feeding only produces soft, rot-prone growth. Withhold fertiliser entirely in the dormant cooler months. A light feed once or twice through spring and summer with a half-strength balanced cactus fertiliser is plenty. It grows slowly and stores nutrients well, so excess feeding only produces soft, rot-prone growth. Withhold fertiliser entirely in the dormant cooler months. Keep that to sparingly through the growing season between spring through early autumn (roughly March to September) and stop entirely once growth slows for winter.
What strength of feed for adromischus maculatus?
Quarter to half strength at most for adromischus maculatus. Succulents take up very little, and a strong dose burns the fine roots before the plant can use it.
What does over-feeding adromischus maculatus 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 adromischus maculatus 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 adromischus maculatus?
Feed lightly enough and you rarely need to flush, but once a year run plain water through the pot of adromischus maculatus until it drains clear, and refresh the gritty mix every 2-3 years.
Keep reading
- Adromischus Maculatus care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water adromischus maculatus — 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 3899 fertilising guides in the Growli library