Fertilising guide
How to fertilise Madagascar Jasmine (Stephanotis floribunda)— schedule & NPK
Also called Madagascar jasmine, Bridal wreath, Wax flower, Hawaiian wedding flower, Bridal veil vine.
More about madagascar jasmine
About Madagascar Jasmine
Stephanotis floribunda · also called Madagascar jasmine, Bridal wreath · flowering
Madagascar jasmine (Stephanotis floribunda) is a twining evergreen vine prized for intensely fragrant, waxy white trumpet flowers. Give it bright, filtered light, consistently moist soil in summer, warmth above 13C and high humidity. Avoid moving it while in bud. The ASPCA lists it as non-toxic to dogs, cats and horses.
Growth habit: Vigorous evergreen twining climber with glossy, leathery deep-green leaves; usually trained on a hoop, trellis or wires and bears clusters of waxy, sweetly scented white tubular flowers in summer.
Watch for — No flowers: Usually caused by too little light, low humidity, or not giving it a cooler, drier winter rest. A bright position, high-potassium feed and a distinct winter dormancy encourage blooming.
What fertiliser madagascar jasmine actually wants — and why
Madagascar Jasmine 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 madagascar jasmine: 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 madagascar jasmine, 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 madagascar jasmine:
Feed fortnightly from spring to early autumn (roughly April to October) with a high-potassium liquid feed such as a diluted tomato fertiliser to support flowering. Stop feeding in winter while growth slows. 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 madagascar jasmine 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 madagascar jasmine
Half strength is the safe default for madagascar jasmine — 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 madagascar jasmine first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the madagascar jasmine watering schedule.
Signs you are over-feeding madagascar jasmine
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for madagascar jasmine:
- 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 madagascar jasmine
- 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 madagascar jasmine care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of madagascar jasmine 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 madagascar jasmine
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 madagascar jasmine — frequently asked questions
What fertiliser does madagascar jasmine 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. Madagascar Jasmine 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 madagascar jasmine?
Feed fortnightly from spring to early autumn (roughly April to October) with a high-potassium liquid feed such as a diluted tomato fertiliser to support flowering. Stop feeding in winter while growth slows. Feed fortnightly from spring to early autumn (roughly April to October) with a high-potassium liquid feed such as a diluted tomato fertiliser to support flowering. Stop feeding in winter while growth slows. 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 madagascar jasmine?
Half strength is the safe default for madagascar jasmine — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding madagascar jasmine 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 madagascar jasmine 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 madagascar jasmine?
Flush the pot of madagascar jasmine 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
- Madagascar Jasmine care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water madagascar jasmine — 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 peace lily
- How to fertilise bird of paradise
- How to fertilise hoya
- All 609 fertilising guides in the Growli library