Fertilising guide
How to fertilise Faucaria Tuberculosa (Faucaria tuberculosa)— schedule & NPK
Also called pebbled tiger jaws, rough tiger jaws.
More about faucaria tuberculosa
About Faucaria Tuberculosa
Faucaria tuberculosa · also called pebbled tiger jaws, rough tiger jaws · houseplant
Faucaria tuberculosa, the pebbled tiger jaws, is a clumping South African succulent whose triangular green leaves are studded with white warty tubercles and edged by soft, tooth-like spines that resemble open jaws. Small and slow, it wants bright light, gritty soil and careful watering, rewarding growers with bright yellow daisy-like autumn flowers.
Growth habit: Slow, clump-forming stemless succulent that spreads into low mats of paired, jaw-like leaves. Produces large, bright yellow daisy-like flowers in autumn, opening in afternoon sun.
What fertiliser faucaria tuberculosa actually wants — and why
Faucaria Tuberculosa 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 faucaria tuberculosa: 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 faucaria tuberculosa, 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 faucaria tuberculosa:
Feed sparingly, once or twice during the autumn-to-spring growing period, with a half-strength balanced cactus fertiliser. It needs little; overfeeding produces soft growth and discourages the compact, toothed form. Do not fertilise during summer dormancy. 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 faucaria tuberculosa 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 faucaria tuberculosa
Quarter to half strength at most for faucaria tuberculosa. 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 faucaria tuberculosa first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the faucaria tuberculosa watering schedule.
Signs you are over-feeding faucaria tuberculosa
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for faucaria tuberculosa:
- 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 faucaria tuberculosa
- 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 faucaria tuberculosa 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 faucaria tuberculosa until it drains clear, and refresh the gritty mix every 2-3 years.
Organic vs synthetic feeds for faucaria tuberculosa
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 faucaria tuberculosa — frequently asked questions
What fertiliser does faucaria tuberculosa 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. Faucaria Tuberculosa 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 faucaria tuberculosa?
Feed sparingly, once or twice during the autumn-to-spring growing period, with a half-strength balanced cactus fertiliser. It needs little; overfeeding produces soft growth and discourages the compact, toothed form. Do not fertilise during summer dormancy. Feed sparingly, once or twice during the autumn-to-spring growing period, with a half-strength balanced cactus fertiliser. It needs little; overfeeding produces soft growth and discourages the compact, toothed form. Do not fertilise during summer dormancy. 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 faucaria tuberculosa?
Quarter to half strength at most for faucaria tuberculosa. Succulents take up very little, and a strong dose burns the fine roots before the plant can use it.
What does over-feeding faucaria tuberculosa 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 faucaria tuberculosa 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 faucaria tuberculosa?
Feed lightly enough and you rarely need to flush, but once a year run plain water through the pot of faucaria tuberculosa until it drains clear, and refresh the gritty mix every 2-3 years.
Keep reading
- Faucaria Tuberculosa care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water faucaria tuberculosa — 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