Fertilising guide

How to fertilise Begonia 'Picotee Lace Pink' (Begonia × tuberhybrida 'Picotee Lace Pink')— schedule & NPK

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.

Growth habit: Bushy, mounding tuberous begonia with brittle, succulent stems carrying large double picotee flowers; compact and well suited to pots, beds and baskets.

Watch for — Petal scorch: Direct hot sun marks the pale picotee petals. Site in partial or dappled shade.

What fertiliser begonia 'picotee lace pink' actually wants — and why

Begonia 'Picotee Lace Pink' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom.

For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for begonia 'picotee lace pink': match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.

How often to feed begonia 'picotee lace pink', and which months

Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For begonia 'picotee lace pink':

Feed every 1-2 weeks through summer with a high-potash liquid feed such as a tomato fertiliser to sustain the double flowers. Start with balanced feed and switch to high-potash once buds form; stop feeding as the plant dies back in autumn. For a hungry bloomer that means feeding regularly — every 1-2 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

The dormant-season rule matters more than the exact interval: skip feeding entirely when begonia 'picotee lace pink' is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.

What strength to mix for begonia 'picotee lace pink'

Follow the flowering-feed label rate for begonia 'picotee lace pink', or half strength if feeding very frequently. These plants genuinely use the nutrients — under-feeding shows up fast as a thin display.

Feeding always goes onto already-damp soil, never dry roots — water begonia 'picotee lace pink' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the begonia 'picotee lace pink' watering schedule.

Signs you are over-feeding begonia 'picotee lace pink'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for begonia 'picotee lace pink':

Lots of lush leaves but few flowers (too much nitrogen).
Scorched leaf edges and salt crust from too-strong or too-frequent feeds.
Soft, sappy growth prone to aphids and mildew.

Signs you are under-feeding begonia 'picotee lace pink'

Sparse, small, short-lived flowers and pale foliage.
A tired plant that stops blooming early in the season.
Weak growth and poor repeat-flowering after the first flush.

If the symptoms point at watering, light or roots rather than nutrition, the full begonia 'picotee lace pink' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Container-grown begonia 'picotee lace pink' accumulates feed salts fast with frequent feeding — water until it drains each time and flush pots with plain water every few weeks to prevent scorch.

Organic vs synthetic feeds for begonia 'picotee lace pink'

Organic options

A liquid comfrey or seaweed feed (naturally potassium-rich) plus compost or well-rotted manure as a mulch. UK: comfrey feed, organic Tomorite, or rose feed; US: Espoma Rose-tone or Neptune's Harvest. Feeds and improves soil.

Synthetic / liquid feeds

A high-potash flowering feed on a regular cadence — UK: Tomorite (Levington), Phostrogen or a specialist rose feed; US: Miracle-Gro Bloom Booster or a rose food. Fast, reliable bloom response.

Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.

Fertilising begonia 'picotee lace pink' — frequently asked questions

What fertiliser does begonia 'picotee lace pink' need?

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom. Begonia 'Picotee Lace Pink' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

How often should I feed begonia 'picotee lace pink'?

Feed every 1-2 weeks through summer with a high-potash liquid feed such as a tomato fertiliser to sustain the double flowers. Start with balanced feed and switch to high-potash once buds form; stop feeding as the plant dies back in autumn. Feed every 1-2 weeks through summer with a high-potash liquid feed such as a tomato fertiliser to sustain the double flowers. Start with balanced feed and switch to high-potash once buds form; stop feeding as the plant dies back in autumn. For a hungry bloomer that means feeding regularly — every 1-2 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

What strength of feed for begonia 'picotee lace pink'?

What does over-feeding begonia 'picotee lace pink' look like?

Lots of lush leaves but few flowers (too much nitrogen). Scorched leaf edges and salt crust from too-strong or too-frequent feeds. Soft, sappy growth prone to aphids and mildew. Using a high-nitrogen general feed on begonia 'picotee lace pink' is the headline mistake — you grow a big leafy plant with few flowers. The second is simply under-feeding a genuinely hungry bloomer and getting a sparse, short display.

Should I flush the soil of begonia 'picotee lace pink'?