
Sea Urchin Stonecrop
Sedum tectorum 'Sea Urchin'
Essentials
At a Glance
Plant Type
Cactus Succulent
Height
5 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8
Water
Low
Humidity
Low
Lifespan
Perennial
Native To
Central and Western Europe
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
A low-growing succulent with a mat-forming habit, producing bright yellow flowers in clusters. Unique for its sea urchin-like shape and its ability to thrive in poor, dry soils.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or cuttings into well-draining soil in spring.
- Mist cuttings regularly to maintain humidity during root development.
- Allow soil to dry out between watering to prevent rot.
- Place in full sun for optimal growth and coloration.
- Transplant outdoors after the last frost, typically late spring.
- Apply a light layer of gravel or sand as mulch to improve drainage.
Pro Tip
Use sandy or gritty soil and avoid overwatering for best results.
Keep It Thriving
Care Guide
Do
- Water sparingly, allowing soil to dry between watering 🌱
- Provide full sun for vibrant color and healthy growth
- Use well-draining soil to prevent root rot
- Apply a balanced succulent fertilizer during the growing season
Don't
- Avoid overwatering, which can cause rot ❌
- Don’t plant in poorly drained clay soils
- Refrain from excessive fertilizing, as it can reduce drought tolerance
- Don’t expose to frost without protection
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Propagate | ||||||||||||
| 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
Sea Urchin Stonecrop questions
What zones can Sea Urchin Stonecrop grow in?
Sea Urchin Stonecrop is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Sea Urchin Stonecrop deer resistant?
Yes — Sea Urchin Stonecrop is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Sea Urchin Stonecrop bloom?
Sea Urchin Stonecrop typically blooms in summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Sea Urchin Stonecrop need full sun?
Sea Urchin Stonecrop does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Sea Urchin Stonecrop drought tolerant?
Yes — once established (usually after the first full season), Sea Urchin Stonecrop handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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