Ebracteate Sea Holly
Eryngium ebracteatum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
48 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
6, 7, 8, 9
Water
Low
Humidity
Low
Lifespan
Perennial
Native To
South America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Eryngium ebracteatum is a perennial herbaceous plant featuring spiky, blue-green foliage and distinctive, globe-shaped flower heads composed of tightly packed, metallic-blue bracts, providing a striking architectural appearance. This species is appreciated for its drought tolerance and ornamental value, making it an excellent choice for low-maintenance, xeriscape gardens and attracting pollinators such as bees and butterflies.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds just below soil surface in spring
- Water lightly until established, about 2 weeks
- Ensure well-drained soil for best growth
- Place in full sun for optimal flowering
- Divide clumps every 3–4 years in early spring
- Mulch lightly to retain moisture and suppress weeds
Pro Tip
Prefers dry, well-drained soil; avoid overwatering
Keep It Thriving
Care Guide
Do
- Water sparingly once established 💧
- Prune dead stems in late fall
- Apply a balanced fertilizer in spring
- Ensure good air circulation around plants
Don't
- Overwater, which can cause root rot ❌
- Plant in heavy, clay soil without amendments ❌
- Neglect pruning, which can reduce flowering ❌
- Use chemical pesticides indiscriminately ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pest Check | ||||||||||||
| 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
Ebracteate Sea Holly questions
What zones can Ebracteate Sea Holly grow in?
Ebracteate Sea Holly is hardy in USDA Zones 6–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Ebracteate Sea Holly deer resistant?
Yes — Ebracteate Sea Holly is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Ebracteate Sea Holly bloom?
Ebracteate Sea Holly typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Ebracteate Sea Holly need full sun?
Ebracteate Sea Holly does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Ebracteate Sea Holly drought tolerant?
Yes — once established (usually after the first full season), Ebracteate Sea Holly handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Eryngium to compare
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Eryngium yuccifolium
Big Blue Sea Holly
Eryngium x hybrida 'Big Blue'
Sea Holly
Eryngium elevatum
Blue Glitter Sea Holly
Eryngium planum 'Blue Glitter'
Blue Hobbit Eryngium
Eryngium x zabelii 'Blue Hobbit'
Picos Blue Sea Holly
Eryngium bourgatii 'Picos Blue'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Ebracteate Sea Holly 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.
