Red Majesty Chrysanthemum (Chrysanthemum morifolium 'Majesty Red')

Red Majesty Chrysanthemum

Chrysanthemum morifolium 'Majesty Red'

Vibrant crimson blooms bring regal autumn warmth. Herbaceous perennial flowering plant; common name: Red Majesty Garden Mum.

Full sun
2–3/week
Beginner
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Plant Needs

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Sunlight Requires 6–8 hours of direct daily sunlight for optimal blooming; tolerate partial shade in extremely hot climates
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Watering Water thoroughly when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Thrives in 15–22℃; tolerate light frosts but require protection from hard freezes below -2℃
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Characteristics

  • Leaf: Dark green, lobed or serrated, ovate to lanceolate, slightly fuzzy texture
  • Flower: Dense, fully double crimson blooms, 8–12 cm in diameter, terminal clusters
  • Stem: Erect, sturdy green stems with branching growth habit
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Horticulturist's Insider Field Notes (No AI Fluff)

The Golden 'Finger Test' Rule

Never water on a strict calendar. Stick your index finger 2 inches into the soil. If it feels cool and damp, wait 2–3 days. If bone dry, water thoroughly until it drains from the bottom holes.

Empty the Saucer After 20 Minutes

The #1 houseplant killer is water sitting in the catch tray. Stagnant runoff water starves roots of oxygen and causes root rot.

Turn the Pot Every 2 Weeks

Houseplants naturally lean toward the nearest window light. Give the pot a quarter-turn biweekly to maintain balanced, symmetrical architecture.

Wipe the Dust Away

Dust on leaves acts like a heavy sunshade. Gently wipe broad foliage with a damp cloth monthly to maximize photosynthesis and air purification.

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Care Guide

Watering

Keep soil consistently moist during active growth and bud formation

Fertilization

Apply balanced liquid fertilizer every 2 weeks. Use a fertilizer with slightly higher phosphorus content to promote bloom development

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 with water, and apply as a root drench to support bloom production
Pruning
  • Pinch back stem tips by 2–3 cm in early summer to encourage bushy growth and increase flower count
  • Deadhead spent blooms regularly to extend the flowering period
  • Cut back stems to 10 cm above soil level after the first hard frost to prepare for winter dormancy
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Pet & Human Toxicity & Emergency Guide

⚠️ Toxic to Pets (Cats & Dogs)

Toxicity Warning: Veterinary toxicology registers Red Majesty Chrysanthemum (Chrysanthemum morifolium 'Majesty Red') as possessing biochemical compounds (such as insoluble oxalates, alkaloids, or saponins) that pose ingestion hazards to felines and canines.

Feline Ingestion Risks (Cats)

Oral pain, hypersalivation (excessive drooling), pawing at mouth, swelling of tongue or lips, vocalization, and vomiting.

Canine Ingestion Risks (Dogs)

Oral mucosal irritation, gagging, retching, lack of appetite, lethargy, diarrhea, and difficulty swallowing.

Immediate Emergency First-Aid

Do NOT induce vomiting without veterinary instructions! Carefully remove remaining plant pieces, gently rinse mouth with cool water, and monitor breathing.

🚨 Pet Ingestion Emergency? Instant Plant & Toxicity Scan

Chewed leaf or stem? Open PlantFun App to scan the plant, immediately verify the botanical species, and view ASPCA toxicity severity ratings & vet first-aid advice.

Emergency Plant Scan
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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Red Majesty Chrysanthemum (Chrysanthemum morifolium 'Majesty Red'):

Yellowing Leaves

Most commonly caused by overwatering or poor drainage. Ensure topsoil dries out between waterings and check for root ventilation.

Brown or Crispy Leaf Tips

Low ambient humidity, hard tap water minerals, or direct midday sunburn. Increase humidity and use filtered water.

Drooping or Wilting Foliage

Indicates dehydration or root damage from prolonged waterlogging. Inspect soil moisture and root firmness.

Common Pests (Spider Mites, Aphids)

Dry indoor air encourages pests. Wipe leaves with a damp cloth and treat with insecticidal soap or neem oil.

🌿 Instant AI Plant Health Check

Take a photo of any leaf on PlantFun App to get instant diagnosis of diseases, pests, and custom care recovery steps.

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Propagation & Repotting Guide

  • Taking Cuttings: During active spring or summer growth, take a healthy 4–6 inch cutting just below a node using clean shears.
  • Rooting Medium: Place cuttings in fresh water or moist perlite mix in bright, indirect light; refresh water weekly.
  • Potting Up: Transplant into well-draining potting mix once roots reach 2 inches in length (typically 3–5 weeks).
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Seasonal Care Calendar

  • Spring & Summer (Active Growth): Water thoroughly as topsoil dries; apply diluted balanced fertilizer monthly; encourage steady growth.
  • Autumn (Transition): Gradually reduce watering frequency as daylight hours shorten; discontinue fertilization.
  • Winter (Dormancy): Water sparingly only when soil is mostly dry; protect from cold window drafts; keep in warm room.
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Frequently Asked Questions

How often should I water my Red Majesty Chrysanthemum?

Water thoroughly when the top 1–2 inches of soil feel dry. In active growth (spring/summer), water every 1–2 weeks; reduce significantly in winter.

Where is the best indoor location for Red Majesty Chrysanthemum?

Position in bright, filtered indirect light (e.g., near an east or south-facing window with sheer curtains). Avoid harsh direct midday sun.

Is Red Majesty Chrysanthemum toxic to pets?

ASPCA: Toxic; contains pyrethrins that cause systemic distress in cats

When should I repot my Red Majesty Chrysanthemum?

Repot every 1–2 years in spring when roots outgrow the drainage holes or the soil depletes nutrients.

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Garden Uses & Culture

Culture: Symbolizes loyalty, longevity, and joy in Chinese culture; associated with autumn harvest festivals

Usage: Ornamental garden plant, cut flower for floral arrangements, and pollinator attractant for bees and butterflies

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