Wee Bit Grumpy Garden Mum (Chrysanthemum morifolium)

Wee Bit Grumpy Garden Mum

Chrysanthemum morifolium

A compact burst of autumn color that defies the fading season. Herbaceous perennial cultivar celebrated for its dense fall blooms; other names: Hardy Mum, Fall Aster.

Requires full sun for best blooming and compact growth.
2/week
Easy
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Plant Needs

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Sunlight Requires full sun for best blooming and compact growth.
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Watering Keep soil consistently moist but not waterlogged, especially during bud formation.
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Temperature Hardy in USDA zones 5-9; prefers cool autumn temperatures for prolonged blooming.
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Characteristics

  • Leaves: Lobed, aromatic, dark green leaves, slightly pubescent with a distinct herbaceous scent when crushed.
  • Flowers: Composite flower heads, densely packed with ray florets, forming a tight, rounded mound typical of garden mum cultivars.
  • Stems: Upright, branching, becoming somewhat woody at the base as the season progresses.
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Care Guide

Watering

Water deeply when the top inch of soil feels dry; increase frequency during hot, dry spells.

Fertilization

Apply a balanced slow-release fertilizer as new growth emerges.. Stop fertilizing once flower buds begin to show color.

Banana Peel Tea:Soak chopped banana peels in water for 48 hours. Dilute 1:1 with water and apply to the soil to support robust fall blooming. Discard peels in compost to avoid attracting pests.
Pruning
  • Pinch back stem tips every 2-3 weeks from spring until mid-July to encourage bushiness and more flower buds.
  • Deadhead spent flowers to maintain a tidy appearance, though it may not significantly prolong the late-season bloom.
  • Cut stems back to 2-3 inches above the ground after they are killed by a hard frost in late autumn or winter.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic (per ASPCA). Ingestion may cause vomiting, diarrhea, hypersalivation, and loss of coordination.

Humans: May cause contact dermatitis; ingestion can cause mild gastrointestinal upset.

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Garden Uses & Culture

Culture: In Western culture, garden mums are the quintessential autumn flower, frequently used in porch displays alongside pumpkins, gourds, and hay bales to celebrate the harvest season and Halloween.

Usage: Widely used as ornamental container plants, border perennials, and seasonal landscape bedding.