Fertilising guide
How to fertilise Thick Gongora (Gongora grossa)— schedule & NPK
Also called Thick Gongora.
More about thick gongora
About Thick Gongora
Gongora grossa · also called Thick Gongora · tropical
Gongora grossa is a robust epiphytic orchid from Colombia and Venezuela, producing pendulous racemes of fleshy, fragrant flowers with distinctively thickened, waxy segments. Like all Gongoras it performs best in a hanging basket to allow its drooping spikes to develop unobstructed. Thrives in intermediate to warm conditions with high humidity.
Growth habit: Sympodial epiphyte forming dense clumps of ovoid to conical pseudobulbs; pendulous flower racemes hang downward from the base of each new pseudobulb, carrying multiple fleshy blooms.
What fertiliser thick gongora actually wants — and why
Thick Gongora 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 thick gongora: 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 thick gongora, 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 thick gongora:
Feed at quarter-strength balanced orchid fertiliser (20-20-20 or similar) weakly during the growing season. Transition to a bloom-boosting low-N formula (e.g. 10-30-20) from late summer through early autumn. Flush with pure water every 4–6 weeks to clear salt accumulation. Treat that as sparingly through the growing season 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 thick gongora 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 thick gongora
Half strength is the safe default for thick gongora — 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 thick gongora first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the thick gongora watering schedule.
Signs you are over-feeding thick gongora
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for thick gongora:
- 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 thick gongora
- 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 thick gongora care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of thick gongora 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 thick gongora
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 thick gongora — frequently asked questions
What fertiliser does thick gongora 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. Thick Gongora 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 thick gongora?
Feed at quarter-strength balanced orchid fertiliser (20-20-20 or similar) weakly during the growing season. Transition to a bloom-boosting low-N formula (e.g. 10-30-20) from late summer through early autumn. Flush with pure water every 4–6 weeks to clear salt accumulation. Feed at quarter-strength balanced orchid fertiliser (20-20-20 or similar) weakly during the growing season. Transition to a bloom-boosting low-N formula (e.g. 10-30-20) from late summer through early autumn. Flush with pure water every 4–6 weeks to clear salt accumulation. Treat that as sparingly through the growing season 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 thick gongora?
Half strength is the safe default for thick gongora — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding thick gongora 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 thick gongora 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 thick gongora?
Flush the pot of thick gongora 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
- Thick Gongora care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water thick gongora — 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 creeping elatostema
- How to fertilise malabar quisqualis
- How to fertilise teysmann's medinilla
- All 8452 fertilising guides in the Growli library