
La Palma Sow Thistle
Sonchus palmensis
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
48 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
9
Water
Low to moderate
Humidity
Average
Lifespan
Perennial
Native To
Canary Islands
Toxicity
Non-toxic
The Story
Plant Bio
Sonchus palmensis, commonly known as the Canary Island prickly sowthistle, is a robust perennial plant known for its large yellow daisy-like flowers and deeply lobed foliage. This species is particularly adapted to coastal environments and is known for its tolerance of dry conditions and poor soils.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Water regularly to keep soil moist but not waterlogged.
- Mist cuttings to maintain humidity and promote root growth.
- Transplant seedlings once they are 4 inches tall into full sun.
- Fertilize monthly with a balanced organic fertilizer during the growing season.
- Prune lightly after flowering to encourage bushier growth.
Pro Tip
Use well-draining sandy soil and provide full sun for vibrant growth.
Keep It Thriving
Care Guide
Do
- Water consistently, especially during dry spells 🌱
- Prune after flowering to shape and promote new growth
- Apply organic fertilizer monthly during active growth
Don't
- Avoid overwatering to prevent root rot ❌
- Don't neglect pruning which helps maintain plant health
- Avoid planting in heavy clay soils without amendments
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| 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
La Palma Sow Thistle questions
What zones can La Palma Sow Thistle grow in?
La Palma Sow Thistle is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is La Palma Sow Thistle deer resistant?
Not reliably. Deer may browse La Palma Sow Thistle, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does La Palma Sow Thistle bloom?
La Palma Sow Thistle typically blooms in spring to summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does La Palma Sow Thistle need full sun?
La Palma Sow Thistle does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is La Palma Sow Thistle drought tolerant?
Yes — once established (usually after the first full season), La Palma Sow Thistle handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
