Repotting guide

When & how to repot Begonia 'Picotee Lace Pink' (Begonia × tuberhybrida 'Picotee Lace Pink')

Also called picotee lace pink begonia, picotee tuberous begonia.

More about begonia 'picotee lace pink'

About Begonia 'Picotee Lace Pink'

Begonia × tuberhybrida 'Picotee Lace Pink' · also called picotee lace pink begonia, picotee tuberous begonia · flowering

Begonia 'Picotee Lace Pink' is a tuberous begonia with large, double, ruffled white-to-cream flowers finely edged in rose-pink, the classic picotee look. Grown as a half-hardy annual or lifted tuber, it flowers all summer in partial shade in moist, free-draining soil. Frost-tender, it is stored as a dry dormant tuber over winter.

Mature size: Around 25-35 cm tall and wide.

How to tell begonia 'picotee lace pink' needs repotting

Repotting on a calendar is less reliable than reading the plant. For begonia 'picotee lace pink', 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 begonia 'picotee lace pink' 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 begonia 'picotee lace pink'

Lift and divide every 3–4 years once clumps congest. Rather than a true repot, begonia 'picotee lace pink' is lifted and divided once the clump congests and flowering drops off. Bushy, mounding tuberous begonia with brittle, succulent stems carrying large double picotee flowers; compact and well suited to pots, beds and baskets..

What size pot to step begonia 'picotee lace pink' up to

Pot size matters less than depth and spacing here. When you replant begonia 'picotee lace pink', 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 begonia 'picotee lace pink'

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 begonia 'picotee lace pink' in full growth or flower sets it back badly.

Step-by-step: repotting begonia 'picotee lace pink'

Wait for dormancy. Let begonia 'picotee lace pink' 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 rich, moisture-retentive but free-draining potting compost 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 begonia 'picotee lace pink', 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 begonia 'picotee lace pink'

Begonia 'Picotee Lace Pink' wants rich, moisture-retentive but free-draining potting compost. Use a good multipurpose or peat-free compost with added grit or perlite for drainage. The shallow roots and brittle, succulent stems need an open mix; heavy, waterlogged compost rots the crown and tuber. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting begonia 'picotee lace pink' — frequently asked questions

How often should you repot begonia 'picotee lace pink'?

Lift and divide every 3–4 years once clumps congest for begonia 'picotee lace pink'. Begonia 'Picotee Lace Pink' 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 rich, moisture-retentive but free-draining potting compost. Crowding, not pot size, is what reduces flowering over time.

What size pot does begonia 'picotee lace pink' need?

When is the best time of year to repot begonia 'picotee lace pink'?

Do you "repot" begonia 'picotee lace pink', or lift and divide it?

You lift and divide it. Begonia 'Picotee Lace Pink' 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 begonia 'picotee lace pink' after repotting?

Hold off feeding begonia 'picotee lace pink' 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.