Luna Red Hardy Hibiscus (Hibiscus moscheutos Luna Red)

Luna Red Hardy Hibiscus

Hibiscus moscheutos Luna Red

Bold scarlet blooms glow like summer embers, a compact garden showstopper. Mounding herbaceous perennial; common name: Luna Red Hibiscus.

Full sun
2/week
Beginner
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Plant Needs

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Sunlight Full sun exposure required for maximum flower production; tolerates partial shade with reduced blooming
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Watering Keep soil consistently moist but not waterlogged; avoid prolonged drought stress during flowering periods
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Temperature Hardy to USDA Zone 5; withstands cold winters with mulch protection; tolerates summer heat with adequate watering
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Characteristics

  • Leaf: Broad, heart-shaped green leaves with slightly serrated matte margins
  • Flower: 20–25 cm wide scarlet red blooms with prominent yellow central staminal column
  • Stem: Sturdy upright green stems with minimal branching
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Care Guide

Watering

Keep soil evenly moist; water deeply 2–3 times weekly in hot dry weather

Fertilization

Apply balanced slow-release fertilizer at planting. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over flower production

Composted banana peel tea:Steep fully composted banana peels in water for 3 days; dilute 1:20 for root drench to enhance blooming without causing nutrient burn
Pruning
  • Cut back dead foliage to ground level in late winter or early spring to encourage new growth
  • Pinch young stems in early spring to promote bushier, more compact growth
  • Remove spent blooms regularly to prolong the flowering season
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-confirmed non-toxic to cats; no reported toxicity symptoms

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes summer beauty and delicate charm; popular in cottage garden designs

Usage: Ornamental garden plant, container specimen, cut flower for floral arrangements