Repotting guide

When & how to repot Double Pinwheel Flower (Tabernaemontana divaricata 'Flore Pleno')

Also called Double Pinwheel Flower, Double Crape Jasmine, Crape Gardenia, Fleur d'Amour.

More about double pinwheel flower

About Double Pinwheel Flower

Tabernaemontana divaricata 'Flore Pleno' · also called Double Pinwheel Flower, Double Crape Jasmine · tropical

The showier, double-flowered cultivar of Tabernaemontana divaricata, bearing densely petalled, gardenia-like white blooms up to 4 cm across with an intensely sweet nocturnal fragrance. More compact than the species when grown in full sun. A popular container plant for patios and conservatories in temperate climates.

Mature size: 1.8–3 m tall and 1.5–2.4 m wide (6–10 ft by 5–8 ft); manageable at 60–120 cm in containers

Watch for — Mealybugs: White cottony pests shelter in the dense double flower petals and leaf axils where they are hard to spot. Inspect blooms and axils regularly; treat with insecticidal soap or neem oil, applying carefully to avoid browning petals.

How to tell double pinwheel flower needs repotting

Repotting on a calendar is less reliable than reading the plant. For double pinwheel flower, watch for these signs:

Roots poking out of the drainage holes or coiling visibly around the inside of the pot.
You are watering far more often than you used to because the rootball dries out within a day or two.
Water runs straight through and out the bottom without soaking in.
Top growth has slowed or new double pinwheel flower leaves are noticeably smaller than older ones despite good light.

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 double pinwheel flower

Every 12–18 months — sooner if roots show fast. Double Pinwheel Flower's growth habit — dense, rounded, multi-stemmed evergreen shrub; more compact than the species in sunny positions — sets the pace. The showier, double-flowered cultivar of Tabernaemontana divaricata, bearing densely petalled, gardenia-like white blooms up to 4 cm across with an intensely sweet nocturnal fragrance. More compact than the species when grown in full sun. A popular container plant for patios and conservatories in temperate climates.

What size pot to step double pinwheel flower up to

Step up one pot size — about 2–3 cm (an inch) wider. Double Pinwheel Flower grows fast, so it will fill that space within a season, but jumping several sizes at once still backfires: the unused soil stays soggy and rots even a vigorous root system. One size at a time, every year or so, is the rhythm.

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 double pinwheel flower

Early spring, just as new growth restarts, is the ideal window for double pinwheel flower. 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 double pinwheel flower

Time it for spring. Repot double pinwheel flower in early spring as growth restarts so it re-roots quickly into the fresh soil.
Choose one size up. Pick a pot about 2–3 cm wider with drainage holes. One step only — a much bigger pot stays soggy and rots roots.
Ease the plant out. Water lightly the day before, then tip double pinwheel flower out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh fertile, moist, well-draining potting mix or loamy garden soil in the new pot, set the plant so its soil line is unchanged, and backfill, firming lightly.
Water and pause feeding. Water once to settle the soil. Hold off fertiliser for about a month — fresh mix already has nutrients and feeding now burns new roots.

Aftercare

Water double pinwheel flower once to settle the soil, then let the surface dry before watering again — fresh mix around the roots stays wetter than the old compacted ball, so the commonest post-repot mistake is overwatering. Keep it out of direct sun for a week or two while roots re-establish. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for double pinwheel flower

Double Pinwheel Flower wants fertile, moist, well-draining potting mix or loamy garden soil. Slightly acidic to neutral pH (6.0–7.0) gives best results. A high-quality peat-free multipurpose compost with 20% perlite added works well in containers. Repot every 2–3 years as the plant fills the pot, which also refreshes depleted nutrients. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting double pinwheel flower — frequently asked questions

How often should you repot double pinwheel flower?

Every 12–18 months — sooner if roots show fast for double pinwheel flower. Repot double pinwheel flower roughly every 12–18 months, in early spring as growth restarts. It grows fast and circles its pot quickly, so step up one size (about 2–3 cm wider) into fresh fertile, moist, well-draining potting mix or loamy garden soil. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does double pinwheel flower need?

When is the best time of year to repot double pinwheel flower?

Can you put double pinwheel flower straight into a much bigger pot?

No. Even a fast-growing double pinwheel flower should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise double pinwheel flower after repotting?

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