Repotting guide

When & how to repot Fairy Bells (Melasphaerula ramosa)

Also called Fairy bells, Fairy grass.

More about fairy bells

About Fairy Bells

Melasphaerula ramosa · also called Fairy bells, Fairy grass · flowering

Melasphaerula ramosa is a slender cormous plant in the family Iridaceae, native to the Western Cape of South Africa where it grows in fynbos scrub and seasonally wet lowlands. The branched wiry stems carry numerous small creamy-white to pale yellow bell-shaped flowers with a faint musky scent in spring. It follows a Mediterranean growth cycle — actively growing through the cool, wet autumn and winter, then dying back completely in summer; in cooler climates it thrives as a cool-greenhouse or cold-frame subject. Toxicity to pets has not been formally assessed by the ASPCA; treat as mildly toxic as an Iridaceae corm plant.

Mature size: 30–50 cm tall, 10–20 cm spread.

Watch for — Corm rot (Fusarium/Penicillium): Overwatering during the dormant summer period is the leading cause of corm loss; ensure pots are completely dry from late spring and stored in a frost-free, ventilated spot.

How to tell fairy bells needs repotting

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

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

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 fairy bells

Every 2–3 years, into bone-dry mix. Fairy Bells's growth habit — clump-forming cormous perennial with erect, much-branched wiry stems carrying grass-like foliage. — sets the pace. Melasphaerula ramosa is a slender cormous plant in the family Iridaceae, native to the Western Cape of South Africa where it grows in fynbos scrub and seasonally wet lowlands. The branched wiry stems carry numerous small creamy-white to pale yellow bell-shaped flowers with a faint musky scent in spring. It follows a Mediterranean growth cycle — actively growing through the cool, wet autumn and winter, then dying back completely in summer; in cooler climates it thrives as a cool-greenhouse or cold-frame subject. Toxicity to pets has not been formally assessed by the ASPCA; treat as mildly toxic as an Iridaceae corm plant.

What size pot to step fairy bells up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Fairy Bells stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

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 fairy bells

Spring or summer, while fairy bells is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting fairy bells

Repot dry. Do not water fairy bells for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty free-draining, gritty loam or corm mix ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set fairy bells at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep fairy bells completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for fairy bells

Fairy Bells wants free-draining, gritty loam or corm mix. Use a mix of equal parts leaf mould or fine bark and coarse horticultural sand or perlite; excellent drainage is critical as this species is highly susceptible to wet-season waterlogging. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting fairy bells — frequently asked questions

How often should you repot fairy bells?

Every 2–3 years, into bone-dry mix for fairy bells. Repot fairy bells every 2–3 years into a snug pot of free-draining, gritty loam or corm mix, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does fairy bells need?

When is the best time of year to repot fairy bells?

Should you water fairy bells after repotting?

No — not straight away. Repot fairy bells into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise fairy bells after repotting?

Not immediately. Wait about 3 weeks after repotting fairy 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.