Fertilising guide
How to fertilise Philodendron 'Burle Marx Fantasy' (Philodendron 'Burle Marx Fantasy')— schedule & NPK
Also called Burle Marx Fantasy, Philodendron Burle Marx Fantasy, Fantasy philodendron.
More about philodendron 'burle marx fantasy'
About Philodendron 'Burle Marx Fantasy'
Philodendron 'Burle Marx Fantasy' · also called Burle Marx Fantasy, Philodendron Burle Marx Fantasy · tropical
Philodendron 'Burle Marx Fantasy' is a rare, slow-growing tropical aroid with compact grey-green leaves boldly veined in silver. It thrives in bright indirect light, warmth and high humidity, and climbs given support. Like all philodendrons it is toxic to cats and dogs (calcium oxalate crystals), so keep it out of pets' reach.
Growth habit: Slow-growing perennial climber. With a moss pole or support it grows upright and produces larger, more elongated, deeply patterned leaves; left unsupported it spreads or trails with smaller foliage. It is an undescribed species/hybrid originating from Roberto Burle Marx's garden and cannot be grown from seed.
What fertiliser philodendron 'burle marx fantasy' actually wants — and why
Philodendron 'Burle Marx Fantasy' is a genuinely hungry tropical — in bright warmth it pushes growth fast and rewards a regular half-strength balanced feed all season.
A balanced liquid feed (even N-P-K) or a slightly nitrogen-leaning foliage feed — this is a big-leaved foliage plant putting on real size, so it wants steady nitrogen for lush leaves, not a bloom formula.
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 philodendron 'burle marx fantasy': 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 philodendron 'burle marx fantasy', 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 philodendron 'burle marx fantasy':
Feed with a balanced, diluted all-purpose liquid houseplant fertiliser every 3-4 weeks during spring and summer, or use a slow-release pellet feed roughly every six months. Stop or reduce feeding in autumn and winter when growth slows. Avoid over-fertilising, which can cause salt build-up and leaf-tip burn. For a fast grower like this that means feeding regularly — about every 3-4 weeks — right through spring through early autumn (roughly March to September), tapering off only as light drops in autumn.
The dormant-season rule matters more than the exact interval: skip feeding entirely when philodendron 'burle marx fantasy' 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 philodendron 'burle marx fantasy'
Half strength every feed is the sweet spot for philodendron 'burle marx fantasy': frequent enough to fuel fast growth, dilute enough that it never scorches even when you feed often.
Feeding always goes onto already-damp soil, never dry roots — water philodendron 'burle marx fantasy' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the philodendron 'burle marx fantasy' watering schedule.
Signs you are over-feeding philodendron 'burle marx fantasy'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for philodendron 'burle marx fantasy':
- Brown, scorched leaf tips and margins despite correct watering.
- A white salt crust on the soil or around the pot edge.
- Sudden leaf yellowing and drop shortly after a strong feed.
- Soft, weak, over-stretched growth that cannot support itself.
Signs you are under-feeding philodendron 'burle marx fantasy'
- New leaves coming in noticeably smaller than older ones.
- Pale, yellow-green older leaves and slow growth through peak summer.
- A general loss of vigour and gloss in a plant that should be racing away.
If the symptoms point at watering, light or roots rather than nutrition, the full philodendron 'burle marx fantasy' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Because you feed often, salts accumulate faster — flush the pot of philodendron 'burle marx fantasy' with plain water until it drains freely roughly every month through the feeding season to keep the root zone clean.
Organic vs synthetic feeds for philodendron 'burle marx fantasy'
Organic options
A diluted seaweed or fish-and-seaweed feed plus a yearly top-dress of worm castings supports fast growth without burn risk. UK: Westland seaweed or Baby Bio Organic; US: Neptune's Harvest or Espoma Indoor!.
Synthetic / liquid feeds
A balanced houseplant liquid at half strength applied frequently — UK: Baby Bio, Phostrogen or Westland Houseplant Feed; US: Miracle-Gro Indoor Plant Food or Dyna-Gro Foliage-Pro for steady leafy growth.
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 philodendron 'burle marx fantasy' — frequently asked questions
What fertiliser does philodendron 'burle marx fantasy' need?
A balanced liquid feed (even N-P-K) or a slightly nitrogen-leaning foliage feed — this is a big-leaved foliage plant putting on real size, so it wants steady nitrogen for lush leaves, not a bloom formula. Philodendron 'Burle Marx Fantasy' is a genuinely hungry tropical — in bright warmth it pushes growth fast and rewards a regular half-strength balanced feed all season.
How often should I feed philodendron 'burle marx fantasy'?
Feed with a balanced, diluted all-purpose liquid houseplant fertiliser every 3-4 weeks during spring and summer, or use a slow-release pellet feed roughly every six months. Stop or reduce feeding in autumn and winter when growth slows. Avoid over-fertilising, which can cause salt build-up and leaf-tip burn. Feed with a balanced, diluted all-purpose liquid houseplant fertiliser every 3-4 weeks during spring and summer, or use a slow-release pellet feed roughly every six months. Stop or reduce feeding in autumn and winter when growth slows. Avoid over-fertilising, which can cause salt build-up and leaf-tip burn. For a fast grower like this that means feeding regularly — about every 3-4 weeks — right through spring through early autumn (roughly March to September), tapering off only as light drops in autumn.
What strength of feed for philodendron 'burle marx fantasy'?
Half strength every feed is the sweet spot for philodendron 'burle marx fantasy': frequent enough to fuel fast growth, dilute enough that it never scorches even when you feed often.
What does over-feeding philodendron 'burle marx fantasy' look like?
Brown, scorched leaf tips and margins despite correct watering. A white salt crust on the soil or around the pot edge. Sudden leaf yellowing and drop shortly after a strong feed. Soft, weak, over-stretched growth that cannot support itself. The mistake here is the opposite of most houseplants: under-feeding a fast tropical in peak season starves it, leaving small, pale new leaves and slow growth — but full-strength doses still burn it, so feed often and weak, not occasionally and strong.
Should I flush the soil of philodendron 'burle marx fantasy'?
Because you feed often, salts accumulate faster — flush the pot of philodendron 'burle marx fantasy' with plain water until it drains freely roughly every month through the feeding season to keep the root zone clean.
Keep reading
- Philodendron 'Burle Marx Fantasy' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water philodendron 'burle marx fantasy' — 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 monstera
- How to fertilise pothos
- How to fertilise fiddle leaf fig
- All 609 fertilising guides in the Growli library