Rupturewort Sea Foam
Herniaria glabra 'Sea Foam'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Groundcover
Height
2 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Low
Humidity
Prefers dry conditions
Lifespan
Perennial
Native To
Europe, Asia, North Africa
Toxicity
Non-toxic
The Story
Plant Bio
Herniaria glabra, commonly known as Rupturewort, is a low-growing, evergreen perennial with tiny, rounded green leaves and small, inconspicuous white flowers that form dense mats. It is often used as ground cover. Herniaria glabra 'Sea Foam' features particularly lush, bright green foliage and a vigorous, spreading habit, making it an excellent choice for creating a soft, seafoam-colored ground cover in sunny locations.
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
- Keep soil moist until germination, about 2 weeks
- Ensure plants receive full sun for optimal growth
- Water sparingly once established, drought tolerant
- Mulch lightly to retain soil moisture in summer
- Prune lightly after flowering to maintain shape
Pro Tip
Use well-draining soil and avoid overwatering for best results.
Keep It Thriving
Care Guide
Do
- Water during prolonged dry spells 🌱
- Mulch to retain soil moisture
- Prune lightly after flowering
- Ensure full sun exposure
Don't
- Overwater, which can cause root rot ❌
- Plant in poorly drained soil
- Neglect pruning after flowering
- Keep in deep shade
Seasonal Care Calendar
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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
Rupturewort Sea Foam questions
What zones can Rupturewort Sea Foam grow in?
Rupturewort Sea Foam is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Rupturewort Sea Foam deer resistant?
Not reliably. Deer may browse Rupturewort Sea Foam, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Rupturewort Sea Foam bloom?
Rupturewort Sea Foam 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 Rupturewort Sea Foam need full sun?
Rupturewort Sea Foam does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Rupturewort Sea Foam drought tolerant?
Yes — once established (usually after the first full season), Rupturewort Sea Foam handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
