Repotting guide

When & how to repot Painted Lady (Philodendron 'Painted Lady')

Also called Painted Lady, Painted Lady Philodendron.

More about painted lady

About Painted Lady

Philodendron 'Painted Lady' · also called Painted Lady, Painted Lady Philodendron · houseplant

Philodendron 'Painted Lady' is a hybrid climber whose new leaves emerge bright chartreuse-yellow on candy-pink petioles, maturing to speckled green. A slow, steady grower, it loves warmth, bright indirect light, and a support to climb. Larger leaves develop as it ascends. All parts are toxic to cats and dogs.

Mature size: 1.5-2.5 m tall on a moss pole; mature leaves 20-40 cm.

Watch for — Brown leaf tips: Low humidity or fertiliser salt buildup; raise humidity and flush the pot with plain water.

How to tell painted lady needs repotting

Repotting on a calendar is less reliable than reading the plant. For painted lady, 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 painted lady 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 painted lady

Every 12–18 months — sooner if roots show fast. Painted Lady's growth habit — climbing aroid with distinctive yellow-green stems and pink petioles; leaves enlarge as it climbs a support. — sets the pace. Philodendron 'Painted Lady' is a hybrid climber whose new leaves emerge bright chartreuse-yellow on candy-pink petioles, maturing to speckled green. A slow, steady grower, it loves warmth, bright indirect light, and a support to climb. Larger leaves develop as it ascends. All parts are toxic to cats and dogs.

What size pot to step painted lady up to

Step up one pot size — about 2–3 cm (an inch) wider. Painted Lady 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 painted lady

Early spring, just as new growth restarts, is the ideal window for painted lady. 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 painted lady

Time it for spring. Repot painted lady 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 painted lady out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh loose, well-draining aroid 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 painted lady 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 painted lady

Painted Lady wants loose, well-draining aroid mix. Blend coco coir or peat with orchid bark and perlite for an airy, moisture-retentive medium. Adding charcoal helps keep roots healthy in the chunky mix it prefers. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting painted lady — frequently asked questions

How often should you repot painted lady?

Every 12–18 months — sooner if roots show fast for painted lady. Repot painted lady 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 loose, well-draining aroid mix. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does painted lady need?

When is the best time of year to repot painted lady?

Can you put painted lady straight into a much bigger pot?

No. Even a fast-growing painted lady 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 painted lady after repotting?

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