Repotting guide

When & how to repot Entire-Lipped Catasetum (Catasetum integerrimum)

Also called Entire-Lipped Catasetum, Intact Catasetum.

More about entire-lipped catasetum

About Entire-Lipped Catasetum

Catasetum integerrimum · also called Entire-Lipped Catasetum, Intact Catasetum · tropical

A vigorous deciduous epiphyte from Mexico through Central America, the Entire-Lipped Catasetum produces striking yellowish-green flowers on pendant spikes in late spring and summer. It demands bright filtered light, heavy feeding and watering during active growth, then a strict dry winter rest once its leaves drop — a cycle that is non-negotiable for reliable flowering.

Mature size: 50 cm tall; pseudobulbs 8–15 cm; leaves to 65 cm long when present

Watch for — Premature leaf drop or rot in dormancy: Continuing to water after leaves naturally yellow and fall triggers root rot. Once pseudobulbs are fully formed and leaves start to yellow, cease routine watering immediately and keep the medium almost completely dry.

How to tell entire-lipped catasetum needs repotting

Repotting on a calendar is less reliable than reading the plant. For entire-lipped catasetum, 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 entire-lipped catasetum 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 entire-lipped catasetum

Every 12–18 months — sooner if roots show fast. Entire-Lipped Catasetum's growth habit — sympodial epiphyte producing clustered, ovoid pseudobulbs each bearing 6–8 large deciduous leaves on a short rhizome. deciduous during winter rest. — sets the pace. A vigorous deciduous epiphyte from Mexico through Central America, the Entire-Lipped Catasetum produces striking yellowish-green flowers on pendant spikes in late spring and summer. It demands bright filtered light, heavy feeding and watering during active growth, then a strict dry winter rest once its leaves drop — a cycle that is non-negotiable for reliable flowering.

What size pot to step entire-lipped catasetum up to

Step up one pot size — about 2–3 cm (an inch) wider. Entire-Lipped Catasetum 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 entire-lipped catasetum

Early spring, just as new growth restarts, is the ideal window for entire-lipped catasetum. 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 entire-lipped catasetum

Time it for spring. Repot entire-lipped catasetum 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 entire-lipped catasetum out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh fast-draining epiphytic bark mix or cork/tree-fern mount 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 entire-lipped catasetum 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 entire-lipped catasetum

Entire-Lipped Catasetum wants fast-draining epiphytic bark mix or cork/tree-fern mount. Use a mix of medium fir bark, perlite, and wood charcoal, or mount on cork bark or tree-fern slabs (requiring daily irrigation in summer). Annual repotting into fresh medium is recommended to prevent substrate acidification. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting entire-lipped catasetum — frequently asked questions

How often should you repot entire-lipped catasetum?

Every 12–18 months — sooner if roots show fast for entire-lipped catasetum. Repot entire-lipped catasetum 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 fast-draining epiphytic bark mix or cork/tree-fern mount. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does entire-lipped catasetum need?

When is the best time of year to repot entire-lipped catasetum?

Can you put entire-lipped catasetum straight into a much bigger pot?

No. Even a fast-growing entire-lipped catasetum 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 entire-lipped catasetum after repotting?

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