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Fertilising guide

How to fertilise Begonia 'Cowardly Lion' (Begonia × 'Cowardly Lion')— schedule & NPK

Also called cowardly lion begonia, rhizomatous cowardly lion.

More about begonia 'cowardly lion'

About Begonia 'Cowardly Lion'

Begonia × 'Cowardly Lion' · also called cowardly lion begonia, rhizomatous cowardly lion · houseplant

Begonia 'Cowardly Lion' is a robust rhizomatous hybrid grown for bold, textured leaves in warm chartreuse-to-amber tones with a dark, ruffled, scalloped margin and a slightly puckered surface. It forms a vigorous mounding clump and throws up sprays of pale flowers in late winter. Forgiving and fast, it suits brighter shade and rewards steady warmth and humidity.

Growth habit: Vigorous rhizomatous begonia with a creeping rhizome and large, ruffled, textured leaves forming a bold, mounded clump.

What fertiliser begonia 'cowardly lion' actually wants — and why

Begonia 'Cowardly Lion' is a genuinely hungry tropical — in bright warmth it pushes growth fast and rewards a regular half-strength balanced feed all season.

A balanced liquid feed (even N-P-K) or a slightly nitrogen-leaning foliage feed — this is a big-leaved foliage plant putting on real size, so it wants steady nitrogen for lush leaves, not a bloom formula.

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 'cowardly lion': 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 'cowardly lion', 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 'cowardly lion':

Feed every 3-4 weeks in spring and summer with a balanced liquid fertiliser at half strength. Reduce or stop in autumn and winter as growth slows. For a fast grower like this that means feeding regularly — about every 3-4 weeks — right through spring through early autumn (roughly March to September), tapering off only as light drops in autumn.

The dormant-season rule matters more than the exact interval: skip feeding entirely when begonia 'cowardly lion' 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 'cowardly lion'

Half strength every feed is the sweet spot for begonia 'cowardly lion': frequent enough to fuel fast growth, dilute enough that it never scorches even when you feed often.

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

Signs you are over-feeding begonia 'cowardly lion'

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

Signs you are under-feeding begonia 'cowardly lion'

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

Flushing and leaching the salts

Because you feed often, salts accumulate faster — flush the pot of begonia 'cowardly lion' with plain water until it drains freely roughly every month through the feeding season to keep the root zone clean.

Organic vs synthetic feeds for begonia 'cowardly lion'

Organic options

A diluted seaweed or fish-and-seaweed feed plus a yearly top-dress of worm castings supports fast growth without burn risk. UK: Westland seaweed or Baby Bio Organic; US: Neptune's Harvest or Espoma Indoor!.

Synthetic / liquid feeds

A balanced houseplant liquid at half strength applied frequently — UK: Baby Bio, Phostrogen or Westland Houseplant Feed; US: Miracle-Gro Indoor Plant Food or Dyna-Gro Foliage-Pro for steady leafy growth.

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 'cowardly lion' — frequently asked questions

What fertiliser does begonia 'cowardly lion' need?

A balanced liquid feed (even N-P-K) or a slightly nitrogen-leaning foliage feed — this is a big-leaved foliage plant putting on real size, so it wants steady nitrogen for lush leaves, not a bloom formula. Begonia 'Cowardly Lion' is a genuinely hungry tropical — in bright warmth it pushes growth fast and rewards a regular half-strength balanced feed all season.

How often should I feed begonia 'cowardly lion'?

Feed every 3-4 weeks in spring and summer with a balanced liquid fertiliser at half strength. Reduce or stop in autumn and winter as growth slows. Feed every 3-4 weeks in spring and summer with a balanced liquid fertiliser at half strength. Reduce or stop in autumn and winter as growth slows. For a fast grower like this that means feeding regularly — about every 3-4 weeks — right through spring through early autumn (roughly March to September), tapering off only as light drops in autumn.

What strength of feed for begonia 'cowardly lion'?

Half strength every feed is the sweet spot for begonia 'cowardly lion': frequent enough to fuel fast growth, dilute enough that it never scorches even when you feed often.

What does over-feeding begonia 'cowardly lion' look like?

Brown, scorched leaf tips and margins despite correct watering. A white salt crust on the soil or around the pot edge. Sudden leaf yellowing and drop shortly after a strong feed. Soft, weak, over-stretched growth that cannot support itself. The mistake here is the opposite of most houseplants: under-feeding a fast tropical in peak season starves it, leaving small, pale new leaves and slow growth — but full-strength doses still burn it, so feed often and weak, not occasionally and strong.

Should I flush the soil of begonia 'cowardly lion'?

Because you feed often, salts accumulate faster — flush the pot of begonia 'cowardly lion' with plain water until it drains freely roughly every month through the feeding season to keep the root zone clean.

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