Venustum Sea Holly
Eryngium venustum
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun
Zones
4, 5, 6, 7, 8, 9
Water
Low to moderate
Humidity
Prefers dry conditions
Lifespan
Perennial
Native To
Mexico
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Eryngium venustum is a perennial herbaceous plant distinguished by its spiky, bluish-green foliage and distinctive, thistle-like flower heads that display metallic blue to purple hues, adding a striking architectural element to gardens. This species is particularly valued for its drought tolerance and long-lasting, visually appealing flower heads that attract pollinators, making it an excellent choice for xeriscaping and wildlife gardens.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring.
- Mist cuttings regularly to maintain humidity.
- Water deeply once established, approximately weekly.
- Fertilize lightly in early spring with a balanced fertilizer.
- Divide clumps every 3-4 years in early spring.
- Mulch around plants to conserve moisture.
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water during prolonged dry spells 🌱
- Prune faded flower heads to encourage rebloom ❌
- Use well-draining soil for planting
Don't
- Overwater in winter ❌
- Skip mulching in summer
- Allow soil to become waterlogged
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Harvest | ||||||||||||
| 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
Venustum Sea Holly questions
What zones can Venustum Sea Holly grow in?
Venustum Sea Holly is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Venustum Sea Holly deer resistant?
Yes — Venustum Sea Holly is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Venustum Sea Holly bloom?
Venustum 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 Venustum Sea Holly need full sun?
Venustum Sea Holly does best in full sun (6+ hours).
Is Venustum Sea Holly drought tolerant?
Yes — once established (usually after the first full season), Venustum Sea Holly handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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Picos Blue Sea Holly
Eryngium bourgatii 'Picos Blue'
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Grow Venustum 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.
