Yellow Quill Mammoth Mum
Chrysanthemum x morifolium 'Yellow Quill Mammoth Mum'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
36 inches
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average garden humidity
Lifespan
Perennial
Native To
Asia and northeastern Europe
Toxicity
Toxic to pets
The Story
Plant Bio
A robust, bushy perennial chrysanthemum with dense foliage and prolific blooming. Known for its unique quill-like petals that give a distinctive appearance.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds or cuttings into well-draining soil in early spring.
- Water thoroughly after planting to settle the soil.
- Mist cuttings regularly to maintain humidity for root development.
- Provide full sun for optimal flowering; keep soil moist but not waterlogged.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Pinch back the stems to promote bushier growth and more blooms.
Pro Tip
Use a lightweight, well-draining potting mix and ensure good air circulation for healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil evenly moist 💧
- Deadhead spent blossoms to encourage more flowers 🌸
- Apply fertilizer monthly during active growth seasons
- Provide full sun for best flowering
- Mulch around the base to retain moisture and suppress weeds
Don't
- Avoid overwatering to prevent root rot ❌
- Do not fertilize in late fall or winter
- Keep away from excessive shade which reduces flowering
- Do not disturb roots during the growing season
- Avoid using harsh chemical pesticides without organic alternatives
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Pinch | ||||||||||||
| Spring Cleanup | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Yellow Quill Mammoth Mum questions
What zones can Yellow Quill Mammoth Mum grow in?
Yellow Quill Mammoth Mum is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Yellow Quill Mammoth Mum deer resistant?
Not reliably. Deer may browse Yellow Quill Mammoth Mum, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Yellow Quill Mammoth Mum bloom?
Yellow Quill Mammoth Mum typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Yellow Quill Mammoth Mum need full sun?
Yellow Quill Mammoth Mum does best in full sun (6+ hours).
More Chrysanthemum to compare
Shasta Daisy
Chrysanthemum leucanthemum 'Becky'
Garden Mum
Chrysanthemum x hybrida 'Christy'
Shasta Daisy
Chrysanthemum leucanthemum 'May Queen'
Mammoth Chrysanthemum
Chrysanthemum x morifolium 'Mammoth'
Mammoth Garden Mum
Chrysanthemum x morifolium 'Hardy Mammoth Mum Collection'
Small Wonder Chrysanthemum
Chrysanthemum x morifolium 'Small Wonder'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Yellow Quill Mammoth Mum with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
