Blackberry Lily (Iris domestica)

Blackberry Lily

Iris domestica

Its orange spotted blooms fade to glossy black seed clusters, a two-season show. Herbaceous perennial.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Thrives in full sun to partial shade; prefers bright direct sunlight for optimal flowering
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Watering Water deeply when the top 5 cm of soil is dry; avoid waterlogging to prevent root rot
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Temperature Hardy to -10°C; grows best between 18–28°C, tolerates warm summer temperatures up to 35°C
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Characteristics

  • Leaf: Linear, sword-shaped leaves arranged in flat, fan-like basal clumps
  • Flower: Bright orange six-petaled blooms with deep red spots, borne in loose terminal spikes
  • Fruit: Round, glossy black seed clusters resembling blackberries, persisting through winter
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Care Guide

Watering

Keep soil consistently moist during active growth

Fertilization

Feed with balanced diluted fertilizer. Use diluted organic feeds to avoid root burn

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to support flowering
Pruning
  • Deadhead spent blooms to encourage prolonged flowering
  • Cut back foliage to ground level after the first autumn frost
  • Thin overcrowded clumps every 2–3 years in early spring to improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: Glossy seed clusters symbolize persistence and seasonal transition

Usage: Ornamental garden plant; cut flowers and dried seed clusters for floral arrangements