Repotting guide

When & how to repot Adolphe Audusson camellia (Camellia japonica 'Adolphe Audusson')

Also called Adolphe Audusson camellia, Adolphe Audusson.

More about adolphe audusson camellia

About Adolphe Audusson camellia

Camellia japonica 'Adolphe Audusson' · also called Adolphe Audusson camellia, Adolphe Audusson · flowering

One of the most reliable and widely grown Camellia japonica cultivars, 'Adolphe Audusson' bears large, semi-double deep crimson-red flowers with prominent golden stamens from late winter to mid-spring. An RHS Award of Garden Merit holder, it forms a dense, upright evergreen shrub ideal for sheltered borders, containers, and woodland gardens in mild climates.

Mature size: 2–4 m (6–13 ft) tall, 1.5–3 m (5–10 ft) wide over many years; usually maintained smaller in cultivation

Watch for — Bud drop: The most common complaint — buds form in summer but fall before opening. Caused by irregular watering during July–September bud set, sudden temperature fluctuations, or root disturbance. Maintain consistent moisture and avoid moving the plant while buds are forming.

How to tell adolphe audusson camellia needs repotting

Repotting on a calendar is less reliable than reading the plant. For adolphe audusson camellia, watch for these signs:

Roots spiralling thickly out of the drainage holes or pushing the whole plant up out of the pot.
The pot is so packed that water runs straight through in seconds and barely wets the soil.
It has split a plastic pot, or the rootball is a solid mass with almost no soil left when you slide it out.
Growth and (for adolphe audusson camellia) flowering have clearly stalled despite good light and feeding — but remember this plant likes being snug, so a little crowding alone is not a reason to repot.

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 adolphe audusson camellia

Only every 2–4 years, when genuinely crowded. Adolphe Audusson camellia is one of the plants that genuinely prefers a snug pot — it grows and flowers better with its roots a little restricted, so resist the urge to repot it on schedule. Upright, bushy evergreen shrub; dense branching with glossy dark green leaves. Moderate growth rate of 20–40 cm per year when established..

What size pot to step adolphe audusson camellia up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Adolphe Audusson camellia positively prefers a snug pot: it flowers and grows better when the roots are a little restricted. The single biggest repotting mistake here is over-potting — dropping adolphe audusson camellia into a pot two or three sizes up. All that surplus soil holds water the small root system cannot use, stays cold and wet, and rots the roots within weeks. When in doubt, choose the smaller pot.

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 adolphe audusson camellia

Early spring, just as new growth restarts, is the ideal window for adolphe audusson camellia. 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 adolphe audusson camellia

Confirm it actually needs it. Slide adolphe audusson camellia out and check the roots. Only continue if it is genuinely packed — this plant prefers a snug pot, so if there is still soil and room, put it straight back.
Pick a pot only one size up. Choose a pot just 2–3 cm wider with good drainage. Resist anything bigger; over-potting is the main killer here.
Ease it out gently. Water lightly the day before, then tip adolphe audusson camellia out, supporting the base. Tease the outer roots free only enough to stop them circling.
Repot at the same depth. Add a layer of fresh acidic, humus-rich, free-draining ericaceous soil, set the plant so the soil line sits exactly where it did before, and backfill around the sides, firming lightly.
Settle it in. Water once to settle the soil, then let it sit. Hold off on more water until the top of the soil dries — fresh soil around a small root system stays wet for a while.

Aftercare

Because the new soil holds more water than the old crammed rootball did, ease right back on watering — let the top of the soil dry before you water adolphe audusson camellia again, or you will rot the roots in the very pot you just moved it to. Keep it out of harsh direct sun for a fortnight. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for adolphe audusson camellia

Adolphe Audusson camellia wants acidic, humus-rich, free-draining ericaceous soil. Requires acidic soil pH 4.5–6.0. Use ericaceous compost in containers. In-ground, incorporate generous amounts of leaf mould, pine bark, or acidic compost. Never add lime. Avoid alkaline or chalky soils; grow in containers with ericaceous mix if garden soil is unsuitable. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting adolphe audusson camellia — frequently asked questions

How often should you repot adolphe audusson camellia?

Only every 2–4 years, when genuinely crowded for adolphe audusson camellia. Only repot adolphe audusson camellia every 2–4 years, and only when it is genuinely root-bound — it flowers and grows best slightly crowded. Step up just one pot size in spring using acidic, humus-rich, free-draining ericaceous soil. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does adolphe audusson camellia need?

When is the best time of year to repot adolphe audusson camellia?

Does adolphe audusson camellia like to be root-bound?

Yes — adolphe audusson camellia genuinely flowers and grows best when slightly pot-bound, so do not rush to repot it. The mistake to avoid is over-potting into a much larger pot: the excess soil stays wet, the roots cannot use it, and the plant rots. Only repot every few years and only one snug size up.

Should you fertilise adolphe audusson camellia after repotting?

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