Hino-Crimson Kurume Azalea (Rhododendron kurume x 'Hino-Crimson')

Hino-Crimson Kurume Azalea

Rhododendron kurume x 'Hino-Crimson'

Vibrant crimson blooms blanket compact branches in spring, a cheerful burst of color. Dwarf evergreen flowering shrub; common name: Hino-Crimson Azalea.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light with morning sun preferred; avoid harsh midday direct sun which can scorch delicate leaves
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Watering Water thoroughly when the top 2–3 cm of soil is dry; avoid waterlogging to prevent root rot and fungal issues
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Temperature Hardy to -10°C; protect from extreme heat above 30°C and drying winter wind chill
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Characteristics

  • Leaf: Small, elliptical, glossy dark green evergreen leaves measuring 1–2 cm long
  • Flower: Clusters of funnel-shaped crimson red blooms with ruffled edges, 2–3 cm wide
  • Stem: Slender, woody stems that grow densely to create a compact, rounded form
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Care Guide

Watering

Keep soil consistently moist but not soggy; increase frequency during hot, dry spells

Fertilization

Feed with acidic, slow-release fertilizer once every 2 weeks during bloom preparation. Use fertilizer formulated for acid-loving plants to maintain soil pH

Composted coffee grounds tea:Use fully composted coffee grounds, dilute 1:20 with water, and apply as a root drench to avoid leaf burn and odor
Pruning
  • Deadhead spent blooms immediately after flowering to encourage compact growth and prevent seed formation
  • Thin overcrowded branches in late spring to improve airflow and reduce disease risk
  • Trim back leggy stems in early spring to maintain a rounded, dense habit
  • Avoid heavy pruning in fall, as new growth may be damaged by winter frost
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion causes vomiting, diarrhea, lethargy, drooling, and potential cardiac abnormalities

Humans: Contains grayanotoxins; ingestion of large quantities can cause nausea, vomiting, abdominal pain, and cardiac irregularities

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Garden Uses & Culture

Culture: Symbolizes passion and vibrant beauty in Japanese ornamental gardening

Usage: Ornamental shrub for rock gardens, border plantings, and container displays