Repotting guide

When & how to repot Three-Colored Lycaste (Lycaste tricolor)

Also called Three-Colored Lycaste, Tricolor Lycaste.

More about three-colored lycaste

About Three-Colored Lycaste

Lycaste tricolor · also called Three-Colored Lycaste, Tricolor Lycaste · tropical

Lycaste tricolor is a medium-sized cool-to-intermediate epiphyte from Costa Rican and Panamanian rainforests at 600–1,000 m. Its flowers combine three distinct colours — typically red-brown sepals, pale-green petals, and a contrasting white lip — making it a striking collector's orchid. Needs filtered light, consistent moisture, and a mild winter rest.

Mature size: Clump 25–40 cm tall; flowers 5–8 cm across

Watch for — Fungal leaf spotting: Brown or black spots expand quickly in warm, humid, still air. Improve ventilation immediately, remove affected tissue, and apply a systemic fungicide. Avoid overhead watering.

How to tell three-colored lycaste needs repotting

Repotting on a calendar is less reliable than reading the plant. For three-colored lycaste, 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 three-colored lycaste 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 three-colored lycaste

Every 12–18 months — sooner if roots show fast. Three-Colored Lycaste's growth habit — sympodial epiphyte forming ovoid compressed pseudobulbs, each producing 2–3 pleated, narrowly elliptic leaves. multiple single-flowered scapes emerge from the base of each mature pseudobulb. tends to be partly deciduous, shedding leaves before flowering. — sets the pace. Lycaste tricolor is a medium-sized cool-to-intermediate epiphyte from Costa Rican and Panamanian rainforests at 600–1,000 m. Its flowers combine three distinct colours — typically red-brown sepals, pale-green petals, and a contrasting white lip — making it a striking collector's orchid. Needs filtered light, consistent moisture, and a mild winter rest.

What size pot to step three-colored lycaste up to

Step up one pot size — about 2–3 cm (an inch) wider. Three-Colored Lycaste 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 three-colored lycaste

Early spring, just as new growth restarts, is the ideal window for three-colored lycaste. 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 three-colored lycaste

Time it for spring. Repot three-colored lycaste 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 three-colored lycaste out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh fine bark and perlite 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 three-colored lycaste 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 three-colored lycaste

Three-Colored Lycaste wants fine bark and perlite mix. A blend of 75% fine fir bark and 25% perlite or pea gravel is standard. The mix should be open and free-draining yet hold just enough moisture between waterings. Good drainage is critical at this species' intermediate temperature range. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting three-colored lycaste — frequently asked questions

How often should you repot three-colored lycaste?

Every 12–18 months — sooner if roots show fast for three-colored lycaste. Repot three-colored lycaste 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 fine bark and perlite mix. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does three-colored lycaste need?

When is the best time of year to repot three-colored lycaste?

Can you put three-colored lycaste straight into a much bigger pot?

No. Even a fast-growing three-colored lycaste 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 three-colored lycaste after repotting?

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