Siberian Bugloss
Brunnera macrophylla 'Heartleaf Alkanet'
Essentials
At a Glance
Plant Type
Perennial
Height
18 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8
Water
Consistent moisture
Humidity
Prefers moist, humid environments
Lifespan
Perennial
Native To
Caucasus
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Heartleaf Alkanet is known for its heart-shaped leaves and clusters of bright blue flowers. This cultivar is particularly noted for its attractive foliage, which remains lush throughout the growing season.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Mist cuttings regularly to keep humidity high during rooting.
- Plant in well-draining soil amended with organic matter.
- Water consistently to keep soil evenly moist, especially during dry spells.
- Apply a balanced fertilizer in early spring for healthy growth.
- Mulch around the base to retain moisture and suppress weeds.
Pro Tip
Use shade cloth during hot summer days to prevent leaf scorch.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not waterlogged 🌱
- Apply organic mulch to conserve moisture and maintain soil temperature
- Fertilize with a balanced, water-soluble fertilizer in spring
- Divide clumps every few years to rejuvenate growth
Don't
- Avoid overwatering which can lead to root rot ❌
- Do not expose to direct hot afternoon sun in summer
- Refrain from heavy pruning in late fall
- Avoid using chemical fertilizers excessively
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| 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
Siberian Bugloss questions
What zones can Siberian Bugloss grow in?
Siberian Bugloss 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 Siberian Bugloss deer resistant?
Yes — Siberian Bugloss is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Siberian Bugloss bloom?
Siberian Bugloss typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Siberian Bugloss need full sun?
Siberian Bugloss does best in part shade.
More Brunnera to compare
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Siberian Bugloss 'Betty Bowring'
Brunnera macrophylla 'Betty Bowring'
Looking Glass Brunnera
Brunnera macrophylla 'Looking Glass'
Siberian Bugloss
Brunnera macrophylla 'Langtrees'
Keep exploring
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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.
