Repotting guide

When & how to repot Calathea Binotii (Goeppertia lietzei 'Binotii')

Also called Binot's calathea.

More about calathea binotii

About Calathea Binotii

Goeppertia lietzei 'Binotii' · also called Binot's calathea · houseplant

Goeppertia lietzei 'Binotii' is a compact prayer plant with slender, wavy-edged leaves showing alternating light and dark green feathering above and deep purple-maroon undersides. A pet-safe Brazilian tropical, it suckers freely into dense clumps. It thrives in bright indirect light, high humidity, steady warmth, and evenly moist, mineral-free, well-draining soil.

Mature size: Around 30-45 cm tall and 30-40 cm wide indoors, spreading into a dense clump.

How to tell calathea binotii needs repotting

Repotting on a calendar is less reliable than reading the plant. For calathea binotii, 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 calathea binotii 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 calathea binotii

Every 12–18 months — sooner if roots show fast. Calathea Binotii's growth habit — compact, freely suckering clump of slender wavy-edged leaves; pronounced daily prayer movement. — sets the pace. Goeppertia lietzei 'Binotii' is a compact prayer plant with slender, wavy-edged leaves showing alternating light and dark green feathering above and deep purple-maroon undersides. A pet-safe Brazilian tropical, it suckers freely into dense clumps. It thrives in bright indirect light, high humidity, steady warmth, and evenly moist, mineral-free, well-draining soil.

What size pot to step calathea binotii up to

Step up one pot size — about 2–3 cm (an inch) wider. Calathea Binotii 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 calathea binotii

Early spring, just as new growth restarts, is the ideal window for calathea binotii. 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 calathea binotii

Time it for spring. Repot calathea binotii 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 calathea binotii out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh light, moisture-retentive, well-draining mix 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 calathea binotii 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 calathea binotii

Calathea Binotii wants light, moisture-retentive, well-draining mix. A coir or peat base with perlite and fine bark keeps moisture available while draining freely. Slightly acidic, pH around 5.5-6.5. Use a pot with drainage holes; it appreciates repotting as the clump fills out. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting calathea binotii — frequently asked questions

How often should you repot calathea binotii?

Every 12–18 months — sooner if roots show fast for calathea binotii. Repot calathea binotii 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 light, moisture-retentive, well-draining mix. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does calathea binotii need?

When is the best time of year to repot calathea binotii?

Can you put calathea binotii straight into a much bigger pot?

No. Even a fast-growing calathea binotii 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 calathea binotii after repotting?

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