Repotting guide

When & how to repot Madagascar Jasmine (Stephanotis floribunda)

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.

Mature size: Up to about 3m (10ft) tall and wide when trained on a support; readily kept smaller with pruning indoors.

Watch for — Bud and flower drop: Stephanotis is notoriously sensitive to being moved, temperature swings, draughts and underwatering once it sets buds. Keep it in one stable spot and avoid rotating or relocating the plant while in bud.

How to tell madagascar jasmine needs repotting

Repotting on a calendar is less reliable than reading the plant. For madagascar jasmine, watch for these signs:

Roots spiralling thickly out of the drainage holes or pushing the whole plant up out of the pot.
The pot is so packed that water runs straight through in seconds and barely wets the soil.
It has split a plastic pot, or the rootball is a solid mass with almost no soil left when you slide it out.
Growth and (for madagascar jasmine) flowering have clearly stalled despite good light and feeding — but remember this plant likes being snug, so a little crowding alone is not a reason to repot.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot madagascar jasmine

Only every 2–4 years, when genuinely crowded. Madagascar Jasmine is one of the plants that genuinely prefers a snug pot — it grows and flowers better with its roots a little restricted, so resist the urge to repot it on schedule. 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..

What size pot to step madagascar jasmine up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Madagascar Jasmine positively prefers a snug pot: it flowers and grows better when the roots are a little restricted. The single biggest repotting mistake here is over-potting — dropping madagascar jasmine into a pot two or three sizes up. All that surplus soil holds water the small root system cannot use, stays cold and wet, and rots the roots within weeks. When in doubt, choose the smaller pot.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot madagascar jasmine

Early spring, just as new growth restarts, is the ideal window for madagascar jasmine. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting madagascar jasmine

Confirm it actually needs it. Slide madagascar jasmine out and check the roots. Only continue if it is genuinely packed — this plant prefers a snug pot, so if there is still soil and room, put it straight back.
Pick a pot only one size up. Choose a pot just 2–3 cm wider with good drainage. Resist anything bigger; over-potting is the main killer here.
Ease it out gently. Water lightly the day before, then tip madagascar jasmine out, supporting the base. Tease the outer roots free only enough to stop them circling.
Repot at the same depth. Add a layer of fresh fertile, free-draining, soil-based mix (e.g. peat-free john innes no.2), set the plant so the soil line sits exactly where it did before, and backfill around the sides, firming lightly.
Settle it in. Water once to settle the soil, then let it sit. Hold off on more water until the top of the soil dries — fresh soil around a small root system stays wet for a while.

Aftercare

Because the new soil holds more water than the old crammed rootball did, ease right back on watering — let the top of the soil dry before you water madagascar jasmine again, or you will rot the roots in the very pot you just moved it to. Keep it out of harsh direct sun for a fortnight. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for madagascar jasmine

Madagascar Jasmine wants fertile, free-draining, soil-based mix (e.g. peat-free john innes no.2). A loam-based potting compost with added grit or perlite gives the roots support plus drainage. Repot in spring only when pot-bound; it flowers more freely with slightly restricted roots. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting madagascar jasmine — frequently asked questions

How often should you repot madagascar jasmine?

Only every 2–4 years, when genuinely crowded for madagascar jasmine. Only repot madagascar jasmine every 2–4 years, and only when it is genuinely root-bound — it flowers and grows best slightly crowded. Step up just one pot size in spring using fertile, free-draining, soil-based mix (e.g. peat-free john innes no.2). The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does madagascar jasmine need?

When is the best time of year to repot madagascar jasmine?

Does madagascar jasmine like to be root-bound?

Yes — madagascar jasmine genuinely flowers and grows best when slightly pot-bound, so do not rush to repot it. The mistake to avoid is over-potting into a much larger pot: the excess soil stays wet, the roots cannot use it, and the plant rots. Only repot every few years and only one snug size up.

Should you fertilise madagascar jasmine after repotting?

Not immediately. Wait about 4 weeks after repotting madagascar jasmine. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.