Fertilising guide
How to fertilise Crossandra infundibuliformis 'Mango' (Crossandra infundibuliformis 'Mango')— schedule & NPK
Also called Mango firecracker flower, Orange crossandra.
More about crossandra infundibuliformis 'mango'
About Crossandra infundibuliformis 'Mango'
Crossandra infundibuliformis 'Mango' · also called Mango firecracker flower, Orange crossandra · tropical
Crossandra infundibuliformis 'Mango' is a compact tropical cultivar of the firecracker flower, prized for its long succession of fan-shaped, mango-orange blooms set against glossy dark green foliage. Native parent stock comes from southern India and Sri Lanka. It flowers almost year-round in warmth and makes an excellent pot, bedding, or conservatory plant.
Growth habit: Compact, bushy evergreen subshrub with upright branching stems and a naturally rounded, well-clothed form ideal for pots and front-of-border planting.
Watch for — Leggy, bloom-poor growth: Too little light or feed stretches the plant. Move to brighter filtered light and feed regularly to restore compact flowering.
What fertiliser crossandra infundibuliformis 'mango' actually wants — and why
Crossandra infundibuliformis 'Mango' 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 crossandra infundibuliformis 'mango': 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 crossandra infundibuliformis 'mango', 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 crossandra infundibuliformis 'mango':
Feed every 2 weeks through the growing season with a balanced or bloom-promoting liquid fertiliser to sustain continuous flowering. Dilute to half strength for potted plants and reduce in winter. Treat that as every 2 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 crossandra infundibuliformis 'mango' 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 crossandra infundibuliformis 'mango'
Half strength is the safe default for crossandra infundibuliformis 'mango' — 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 crossandra infundibuliformis 'mango' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the crossandra infundibuliformis 'mango' watering schedule.
Signs you are over-feeding crossandra infundibuliformis 'mango'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for crossandra infundibuliformis 'mango':
- 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 crossandra infundibuliformis 'mango'
- 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 crossandra infundibuliformis 'mango' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of crossandra infundibuliformis 'mango' 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 crossandra infundibuliformis 'mango'
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 crossandra infundibuliformis 'mango' — frequently asked questions
What fertiliser does crossandra infundibuliformis 'mango' 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. Crossandra infundibuliformis 'Mango' 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 crossandra infundibuliformis 'mango'?
Feed every 2 weeks through the growing season with a balanced or bloom-promoting liquid fertiliser to sustain continuous flowering. Dilute to half strength for potted plants and reduce in winter. Feed every 2 weeks through the growing season with a balanced or bloom-promoting liquid fertiliser to sustain continuous flowering. Dilute to half strength for potted plants and reduce in winter. Treat that as every 2 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 crossandra infundibuliformis 'mango'?
Half strength is the safe default for crossandra infundibuliformis 'mango' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding crossandra infundibuliformis 'mango' 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 crossandra infundibuliformis 'mango' 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 crossandra infundibuliformis 'mango'?
Flush the pot of crossandra infundibuliformis 'mango' 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
- Crossandra infundibuliformis 'Mango' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water crossandra infundibuliformis 'mango' — 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 5561 fertilising guides in the Growli library