Arends' Monkshood
Aconitum carmichaelii 'Arendsii'
Essentials
At a Glance
Plant Type
Perennial
Height
42 inches
Width
18 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Asia
Toxicity
Highly toxic if ingested
The Story
Plant Bio
Aconitum carmichaelii 'Arendsii' is known for its tall, striking blue flowers and is great for adding vertical interest to the garden. This cultivar is valued for its late-season blooms and ability to thrive in partially shaded conditions.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Water regularly to keep soil consistently moist during growing season.
- Mist cuttings in a shaded area to encourage root development.
- Fertilize with a balanced, slow-release fertilizer in early spring.
- Divide mature clumps every 3–4 years in early spring or fall.
- Mulch around plants to retain moisture and suppress weeds.
Pro Tip
Ensure well-draining soil and partial shade for optimal growth.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Apply compost annually for healthy growth
- Prune dead or damaged stems in late fall
Don't
- Avoid overwatering to prevent root rot ❌
- Do not expose to full, harsh sunlight
- Never neglect to wear gloves when handling
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
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
Arends' Monkshood questions
What zones can Arends' Monkshood grow in?
Arends' Monkshood is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Arends' Monkshood deer resistant?
Yes — Arends' Monkshood is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Arends' Monkshood bloom?
Arends' Monkshood 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 Arends' Monkshood need full sun?
Arends' Monkshood does best in part shade.
More Aconitum to compare
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Arends' Monkshood 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.
