Repotting guide

When & how to repot Cat's Claw Vine (Macfadyena unguis-cati)

Also called Cat's Claw Creeper, Yellow Trumpet Vine, Funnel Creeper.

More about cat's claw vine

About Cat's Claw Vine

Macfadyena unguis-cati · also called Cat's Claw Creeper, Yellow Trumpet Vine · tropical

Cat's Claw Vine is a vigorous evergreen climber from tropical America, armed with hook-like tendrils that allow it to grip almost any surface. It produces a spectacular display of bright yellow trumpet flowers in spring. Listed as a serious invasive weed in Australia, South Africa, and parts of the USA — rarely recommended for new plantings.

Mature size: Up to 15 m; spreads indefinitely via tuberous roots

Watch for — Invasive spread: Declared a weed of national significance in Australia. Tuberous roots regenerate prolifically after cutting. Do not plant in frost-free climates near natural vegetation.

How to tell cat's claw vine needs repotting

Repotting on a calendar is less reliable than reading the plant. For cat's claw vine, watch for these signs:

Flowering has tailed off year on year and the clump has become congested and overcrowded.
Lots of leaf and few flowers — a classic sign that cat's claw vine bulbs or tubers need lifting and dividing.
Bulbs visibly bursting the pot or pushing each other to the surface.
It is the natural dormancy window (foliage yellowed and died back) — the only safe time to lift and split.

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 cat's claw vine

Lift and divide every 3–4 years once clumps congest. Rather than a true repot, cat's claw vine is lifted and divided once the clump congests and flowering drops off. Extremely vigorous evergreen tendril-climbing woody vine with tuberous roots.

What size pot to step cat's claw vine up to

Pot size matters less than depth and spacing here. When you replant cat's claw vine, set the bulbs or tubers at the correct depth (a rough guide: two to three times their own height of soil over the top) and space them so they are not touching. A wide, shallow pot suits a clump better than a tall narrow one.

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 cat's claw vine

The only safe window is dormancy: wait until the foliage has yellowed and died back naturally, lift and divide then, and replant before or at the start of the next growing season. Disturbing cat's claw vine in full growth or flower sets it back badly.

Step-by-step: repotting cat's claw vine

Wait for dormancy. Let cat's claw vine foliage yellow and die back completely. Lifting while it is in growth wastes the energy it is storing for next year.
Lift carefully. Loosen the soil well away from the bulbs/tubers with a fork and ease the whole clump out without spearing them.
Separate the offsets. Gently pull the clump apart into individual bulbs or tubers. Keep only firm, healthy, blemish-free ones.
Replant at the right depth. Reset them in fresh adaptable to almost any well-drained soil including poor, sandy, or rocky substrates at the correct depth and spacing — not touching — so each has room to bulk up.
Water in and rest. Water once to settle them, then keep on the dry side until growth resumes. Do not feed until leaves are actively growing.

Aftercare

After replanting cat's claw vine, keep the soil barely moist — not wet — until shoots appear; bulbs and tubers rot in cold, saturated soil. Once leaves are growing strongly, resume normal watering. Hold off feeding until the plant is in active growth again.

The right soil mix for cat's claw vine

Cat's Claw Vine wants adaptable to almost any well-drained soil including poor, sandy, or rocky substrates. Tolerates pH 5.0–8.0. Succeeds in heavy clay, poor sandy soils, and coastal conditions. This extreme soil tolerance contributes to its invasiveness. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting cat's claw vine — frequently asked questions

How often should you repot cat's claw vine?

Lift and divide every 3–4 years once clumps congest for cat's claw vine. Cat's Claw Vine is lifted and divided, not "repotted". Every 3–4 years, once the foliage has died back and it is dormant, lift the clump, separate the offsets, and replant at the correct depth in adaptable to almost any well-drained soil including poor, sandy, or rocky substrates. Crowding, not pot size, is what reduces flowering over time.

What size pot does cat's claw vine need?

When is the best time of year to repot cat's claw vine?

Do you "repot" cat's claw vine, or lift and divide it?

You lift and divide it. Cat's Claw Vine grows from bulbs or tubers, so instead of repotting you wait for dormancy, lift the congested clump, separate the healthy offsets, and replant them at the right depth and spacing. Doing this every 3–4 years restores flowering.

Should you fertilise cat's claw vine after repotting?

Hold off feeding cat's claw vine until it is in active growth again. Fresh soil already carries enough nutrients to get it re-established, and feeding disturbed roots too soon does more harm than good.