Repotting guide

When & how to repot Painted Flowering Maple (Abutilon pictum)

Also called Painted Flowering Maple, Redvein Abutilon, Red Vein Indian Mallow, Redvein Flowering Maple.

More about painted flowering maple

About Painted Flowering Maple

Abutilon pictum · also called Painted Flowering Maple, Redvein Abutilon · flowering

Abutilon pictum is a fast-growing evergreen shrub native to Brazil and Argentina, grown widely for its pendulous bell-shaped orange-yellow flowers with prominent deep red veins and its attractive maple-like lobed leaves. The most commonly grown form, 'Thompsonii', features striking yellow-mottled variegated foliage caused by Abutilon mosaic virus. It thrives in a bright, sheltered position and flowers almost year-round in warm conditions; the key care requirement is a minimum winter temperature above 5°C, making it a conservatory or houseplant in most of the UK. Abutilon is not listed on the ASPCA toxic plants database and is not considered toxic to cats or dogs, though mild gastrointestinal upset may occur if large quantities are consumed.

Mature size: 1–3 m tall and 1–1.5 m wide outdoors in frost-free climates; typically 60–120 cm as a container specimen with annual pruning.

How to tell painted flowering maple needs repotting

Repotting on a calendar is less reliable than reading the plant. For painted flowering maple, 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 painted flowering maple) 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 painted flowering maple

Only every 2–4 years, when genuinely crowded. Painted Flowering Maple 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, fast-growing evergreen shrub with maple-like lobed leaves and pendulous, lantern-shaped flowers borne along the stems..

What size pot to step painted flowering maple up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Painted Flowering Maple 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 painted flowering maple 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 painted flowering maple

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

Confirm it actually needs it. Slide painted flowering maple 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 painted flowering maple 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 fertile, moderately rich, well-drained, 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 painted flowering maple 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 painted flowering maple

Painted Flowering Maple wants fertile, moderately rich, well-drained. A peat-free, multipurpose compost with added perlite or grit suits container growing well. In the garden, plant in moderately fertile, well-drained soil; it tolerates a wide range of soil types provided drainage is adequate. 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 flowering maple — frequently asked questions

How often should you repot painted flowering maple?

Only every 2–4 years, when genuinely crowded for painted flowering maple. Only repot painted flowering maple 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 fertile, moderately rich, well-drained. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does painted flowering maple need?

When is the best time of year to repot painted flowering maple?

Does painted flowering maple like to be root-bound?

Yes — painted flowering maple 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 painted flowering maple after repotting?

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