Repotting guide

When & how to repot White Temple Bells (Smithiantha multiflora)

Also called Temple Bells, White Smithiantha.

More about white temple bells

About White Temple Bells

Smithiantha multiflora · also called Temple Bells, White Smithiantha · houseplant

White Temple Bells is a Mexican gesneriad that produces cascading tubular white flowers above velvety, heart-shaped leaves. It grows from rhizomes, dies back in winter, and re-emerges in spring. Ideal for bright indoor spots with high humidity. As a gesneriad, it is considered pet-safe based on ASPCA guidance for the broader family.

Mature size: 30-45 cm tall and wide in active growth

Watch for — Failure to re-emerge: Rhizomes need a cool, dry rest period to reset flowering. Store pots in a cool (12-15°C) location over winter.

How to tell white temple bells needs repotting

Repotting on a calendar is less reliable than reading the plant. For white temple bells, 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 white temple bells) 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 white temple bells

Only every 2–4 years, when genuinely crowded. White Temple Bells 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. Rhizomatous perennial with seasonal dormancy.

What size pot to step white temple bells up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. White Temple Bells 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 white temple bells 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 white temple bells

Early spring, just as new growth restarts, is the ideal window for white temple bells. 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 white temple bells

Confirm it actually needs it. Slide white temple bells 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 white temple bells 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 light, free-draining peat-free compost with perlite, 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 white temple bells 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 white temple bells

White Temple Bells wants light, free-draining peat-free compost with perlite. A mix of fine bark, perlite, and peat-free compost (1:1:2) suits this rhizomatous species well. Good aeration prevents rhizome rot during the dormant period. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting white temple bells — frequently asked questions

How often should you repot white temple bells?

Only every 2–4 years, when genuinely crowded for white temple bells. Only repot white temple bells 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 light, free-draining peat-free compost with perlite. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does white temple bells need?

When is the best time of year to repot white temple bells?

Does white temple bells like to be root-bound?

Yes — white temple bells 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 white temple bells after repotting?

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