Fertilising guide
How to fertilise Anthurium andraeanum 'Midori' (Anthurium andraeanum 'Midori')— schedule & NPK
Also called Midori anthurium, green anthurium.
More about anthurium andraeanum 'midori'
About Anthurium andraeanum 'Midori'
Anthurium andraeanum 'Midori' · also called Midori anthurium, green anthurium · tropical
'Midori' is a distinctive green-flowering Anthurium andraeanum hybrid whose heart-shaped spathes open a fresh apple-green rather than the usual red. An epiphytic tropical aroid, it blooms for weeks at a time and thrives indoors in warm, humid, brightly lit spots. The cool green bracts and glossy foliage give it a clean, modern look.
Growth habit: Clump-forming evergreen epiphyte forming an upright rosette of glossy, heart-shaped leaves with flower stalks held just above. A neat, floriferous, slow-to-moderate grower that stays compact rather than climbing.
Watch for — Spathes turning brown or dull: Low humidity, draughts, or hard-water salts. Raise humidity, keep away from heat sources, and water with filtered or rainwater.
What fertiliser anthurium andraeanum 'midori' actually wants — and why
Anthurium andraeanum 'Midori' is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root 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 anthurium andraeanum 'midori': 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 anthurium andraeanum 'midori', 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 anthurium andraeanum 'midori':
Apply a balanced houseplant fertiliser at half strength every 4-6 weeks during spring and summer, or a bloom-boosting high-phosphorus feed to keep spathes coming. Cut back in autumn and winter. Periodically flush the mix to prevent salt accumulation that burns root tips. Treat that as every 4-6 weeks between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
The dormant-season rule matters more than the exact interval: skip feeding entirely when anthurium andraeanum 'midori' 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 anthurium andraeanum 'midori'
Half strength is the safe default for anthurium andraeanum 'midori' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
Feeding always goes onto already-damp soil, never dry roots — water anthurium andraeanum 'midori' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the anthurium andraeanum 'midori' watering schedule.
Signs you are over-feeding anthurium andraeanum 'midori'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for anthurium andraeanum 'midori':
- Brown, crispy leaf tips and edges with no sign of underwatering.
- A white, crusty salt deposit on the soil surface or pot rim.
- Weak, pale, stretched new growth that flops.
- Lower leaves yellow and drop while the soil is correctly watered.
Signs you are under-feeding anthurium andraeanum 'midori'
- Uniformly pale or yellow-green leaves, oldest first.
- Noticeably small new leaves and stalled growth in good light and season.
- A generally tired, lacklustre look despite correct watering and light.
If the symptoms point at watering, light or roots rather than nutrition, the full anthurium andraeanum 'midori' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of anthurium andraeanum 'midori' with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Organic vs synthetic feeds for anthurium andraeanum 'midori'
Organic options
A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.
Synthetic / liquid feeds
A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.
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 anthurium andraeanum 'midori' — frequently asked questions
What fertiliser does anthurium andraeanum 'midori' need?
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Anthurium andraeanum 'Midori' is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
How often should I feed anthurium andraeanum 'midori'?
Apply a balanced houseplant fertiliser at half strength every 4-6 weeks during spring and summer, or a bloom-boosting high-phosphorus feed to keep spathes coming. Cut back in autumn and winter. Periodically flush the mix to prevent salt accumulation that burns root tips. Apply a balanced houseplant fertiliser at half strength every 4-6 weeks during spring and summer, or a bloom-boosting high-phosphorus feed to keep spathes coming. Cut back in autumn and winter. Periodically flush the mix to prevent salt accumulation that burns root tips. Treat that as every 4-6 weeks between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
What strength of feed for anthurium andraeanum 'midori'?
Half strength is the safe default for anthurium andraeanum 'midori' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding anthurium andraeanum 'midori' look like?
Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding anthurium andraeanum 'midori' year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.
Should I flush the soil of anthurium andraeanum 'midori'?
Flush the pot of anthurium andraeanum 'midori' with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Keep reading
- Anthurium andraeanum 'Midori' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water anthurium andraeanum 'midori' — 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 2464 fertilising guides in the Growli library