The Story
Plant Bio
Agapanthus comptonii is a perennial plant characterized by its attractive blue flowers that bloom in late summer. It forms a clump of strap-like leaves and works well in various garden settings.
This species is particularly known for its drought tolerance and ability to thrive in coastal conditions.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
7, 8, 9, 10
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
South Africa
Toxicity
All parts are toxic if ingested
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and promote root growth.
- Transplant seedlings when they are sturdy and have developed a good root system, typically after 1 year.
- Fertilize with a balanced, slow-release fertilizer in spring and summer.
- Mulch around the base to conserve moisture and suppress weeds.
- Divide clumps in early spring or fall to propagate new plants.
Pro Tip
Use a sandy, well-draining soil to prevent root rot and ensure healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly during the growing season 🌱
- Provide full sun for optimal flowering
- Apply fertilizer in spring and summer
Don't
- Avoid overwatering to prevent root rot ❌
- Do not plant in heavy clay soil without amendments
- Refrain from pruning after flowering to allow seed set
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
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
Compton's Agapanthus African Lily questions
What zones can Compton's Agapanthus African Lily grow in?
Compton's Agapanthus African Lily is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Compton's Agapanthus African Lily deer resistant?
Yes — Compton's Agapanthus African Lily is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Compton's Agapanthus African Lily bloom?
Compton's Agapanthus African Lily typically blooms in summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Compton's Agapanthus African Lily need full sun?
Compton's Agapanthus African Lily does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Compton's Agapanthus African Lily drought tolerant?
Yes — once established (usually after the first full season), Compton's Agapanthus African Lily handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Agapanthus to compare
Storm Cloud African Lily
Agapanthus praecox 'Storm Cloud'
Galaxy Blue Lily of the Nile
Agapanthus praecox 'Galaxy Blue'
Nigrescens African Lily
Agapanthus inapertus 'Nigrescens'
African Lily Lily of the Nile
Agapanthus africanus
Queen Mum Agapanthus
Agapanthus orientalis 'Queen Mum'
Galaxy White African Lily
Agapanthus praecox 'Galaxy White'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Compton's Agapanthus African Lily 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.