Sea Heart Brunnera
Brunnera macrophylla 'Sea Heart'
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
18 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8
Water
Moist
Humidity
High
Lifespan
Perennial
Native To
Caucasus
Toxicity
Non-toxic
The Story
Plant Bio
Brunnera macrophylla 'Sea Heart' is a clump-forming perennial with large, heart-shaped, silver leaves edged and veined in green. It produces sprays of tiny, forget-me-not-like blue flowers in spring. This cultivar is notable for its striking, silver-variegated foliage with dark green edges, providing ornamental appeal even when not in flower, and it thrives in shaded garden conditions.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds or divisions into moist soil in early spring.
- Ensure soil remains consistently moist for optimal growth.
- Mist cuttings regularly to maintain humidity and encourage rooting.
- Plant in shaded or partially shaded areas with rich loamy soil.
- Mulch around plants to retain moisture and suppress weeds.
- Fertilize lightly in early spring with a balanced fertilizer.
Pro Tip
Keep soil consistently moist and provide shade for best foliage color.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Mulch to retain moisture and regulate temperature
- Divide every few years to prevent overcrowding
Don't
- Avoid full sun exposure which can scorch leaves ❌
- Do not let soil dry out completely
- Avoid heavy, waterlogged soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| 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
Sea Heart Brunnera questions
What zones can Sea Heart Brunnera grow in?
Sea Heart Brunnera is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Sea Heart Brunnera deer resistant?
Yes — Sea Heart Brunnera is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Sea Heart Brunnera bloom?
Sea Heart Brunnera typically blooms in early spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Sea Heart Brunnera need full sun?
Sea Heart Brunnera does best in part shade.
More Brunnera to compare
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Brunnera macrophylla 'Jack Frost'
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Brunnera macrophylla 'Queen of Hearts'
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Brunnera macrophylla 'Heartleaf Alkanet'
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Brunnera macrophylla 'Betty Bowring'
Looking Glass Brunnera
Brunnera macrophylla 'Looking Glass'
Siberian Bugloss
Brunnera macrophylla 'Langtrees'
Keep exploring
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Hardy in your zone?
Grow Sea Heart Brunnera 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.
