Fertilising guide
How to fertilise Begonia × semperflorens-cultorum 'Dragon Wing Red' (Begonia × semperflorens-cultorum 'Dragon Wing Red')— schedule & NPK
Also called Dragon Wing Red Begonia, Angel Wing Begonia Red.
More about begonia × semperflorens-cultorum 'dragon wing red'
About Begonia × semperflorens-cultorum 'Dragon Wing Red'
Begonia × semperflorens-cultorum 'Dragon Wing Red' · also called Dragon Wing Red Begonia, Angel Wing Begonia Red · flowering
Dragon Wing Red is a vigorous cane-type hybrid begonia with glossy angel-wing leaves and cascading clusters of scarlet-red flowers that bloom non-stop from spring to frost. It tolerates more heat and sun than wax begonias, thrives in containers and baskets, and shrugs off humidity. Self-cleaning blooms mean little deadheading. Tender perennial grown as an annual.
Growth habit: Mounding to slightly cascading cane-type habit with arching, branching stems; bushy and self-supporting in containers.
What fertiliser begonia × semperflorens-cultorum 'dragon wing red' actually wants — and why
Begonia × semperflorens-cultorum 'Dragon Wing Red' flowers best on poor soil — feed it and you get a lush leafy plant with very few blooms, the exact opposite of what you want.
Little or nothing. Rich, especially nitrogen-rich, soil pushes foliage at the expense of flowers in this plant — lean ground is the technique, not a deficiency.
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 × semperflorens-cultorum 'dragon wing red': 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 × semperflorens-cultorum 'dragon wing red', 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 × semperflorens-cultorum 'dragon wing red':
Feed every 2 weeks during active growth with a balanced water-soluble fertiliser at half strength, or use a slow-release granular at planting. Ease off in autumn as growth slows. Over-feeding produces lush leaves at the expense of flowers. In practice: no routine feeding at all for begonia × semperflorens-cultorum 'dragon wing red' — at most a thin compost mulch for soil structure, never a flowering or nitrogen feed.
The dormant-season rule matters more than the exact interval: skip feeding entirely when begonia × semperflorens-cultorum 'dragon wing red' 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 × semperflorens-cultorum 'dragon wing red'
None is the correct answer for begonia × semperflorens-cultorum 'dragon wing red'. The flower-versus-foliage trade-off is the whole point: hold back and you get the display.
Feeding always goes onto already-damp soil, never dry roots — water begonia × semperflorens-cultorum 'dragon wing red' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the begonia × semperflorens-cultorum 'dragon wing red' watering schedule.
Signs you are over-feeding begonia × semperflorens-cultorum 'dragon wing red'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for begonia × semperflorens-cultorum 'dragon wing red':
- Abundant leafy growth and very few flowers (the classic over-rich symptom).
- Soft, floppy stems and a sprawling, leafy habit.
- Scorched edges and salt crust if it has been fed in a container.
Signs you are under-feeding begonia × semperflorens-cultorum 'dragon wing red'
- Effectively never an issue — these plants flower on poverty.
- Only on genuinely dead soil: weak, thin growth and few blooms.
- A short-lived plant in completely spent container compost.
If the symptoms point at watering, light or roots rather than nutrition, the full begonia × semperflorens-cultorum 'dragon wing red' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
If begonia × semperflorens-cultorum 'dragon wing red' has accidentally been fed and is all leaf, a plain-water flush plus a move to leaner soil resets it; otherwise no flushing is needed because you are not feeding it.
Organic vs synthetic feeds for begonia × semperflorens-cultorum 'dragon wing red'
Organic options
A thin compost mulch for soil structure is the absolute most; mostly, give it nothing. UK/US: leave it lean — no manure, no liquid feed. Poor soil is the active ingredient here.
Synthetic / liquid feeds
None. Synthetic feeds, particularly anything with appreciable nitrogen, directly suppress flowering in begonia × semperflorens-cultorum 'dragon wing red'.
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 × semperflorens-cultorum 'dragon wing red' — frequently asked questions
What fertiliser does begonia × semperflorens-cultorum 'dragon wing red' need?
Little or nothing. Rich, especially nitrogen-rich, soil pushes foliage at the expense of flowers in this plant — lean ground is the technique, not a deficiency. Begonia × semperflorens-cultorum 'Dragon Wing Red' flowers best on poor soil — feed it and you get a lush leafy plant with very few blooms, the exact opposite of what you want.
How often should I feed begonia × semperflorens-cultorum 'dragon wing red'?
Feed every 2 weeks during active growth with a balanced water-soluble fertiliser at half strength, or use a slow-release granular at planting. Ease off in autumn as growth slows. Over-feeding produces lush leaves at the expense of flowers. Feed every 2 weeks during active growth with a balanced water-soluble fertiliser at half strength, or use a slow-release granular at planting. Ease off in autumn as growth slows. Over-feeding produces lush leaves at the expense of flowers. In practice: no routine feeding at all for begonia × semperflorens-cultorum 'dragon wing red' — at most a thin compost mulch for soil structure, never a flowering or nitrogen feed.
What strength of feed for begonia × semperflorens-cultorum 'dragon wing red'?
None is the correct answer for begonia × semperflorens-cultorum 'dragon wing red'. The flower-versus-foliage trade-off is the whole point: hold back and you get the display.
What does over-feeding begonia × semperflorens-cultorum 'dragon wing red' look like?
Abundant leafy growth and very few flowers (the classic over-rich symptom). Soft, floppy stems and a sprawling, leafy habit. Scorched edges and salt crust if it has been fed in a container. Feeding begonia × semperflorens-cultorum 'dragon wing red' at all — especially "to help it flower" — is the defining mistake. Rich soil gives you a big green plant and almost no blooms; restraint is what produces the flowers.
Should I flush the soil of begonia × semperflorens-cultorum 'dragon wing red'?
If begonia × semperflorens-cultorum 'dragon wing red' has accidentally been fed and is all leaf, a plain-water flush plus a move to leaner soil resets it; otherwise no flushing is needed because you are not feeding it.
Keep reading
- Begonia × semperflorens-cultorum 'Dragon Wing Red' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water begonia × semperflorens-cultorum 'dragon wing red' — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
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- All 5561 fertilising guides in the Growli library