The Story
Plant Bio
A clump-forming perennial with attractive lavender violet flowers and deep green foliage.
The 'Plenum Violaceum' cultivar features double flowers, providing additional visual interest compared to typical varieties.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Europe and Asia
Toxicity
Non-toxic to humans and pets
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain moisture and promote rooting.
- Water deeply once a week during dry periods to encourage healthy growth.
- Feed with a balanced fertilizer every 4-6 weeks during the growing season.
- Prune back after flowering to maintain shape and promote new blooms.
- Divide clumps in early spring or fall for propagation and plant rejuvenation.
Pro Tip
Plant in a location with full sun to partial shade for optimal flowering and foliage color.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not waterlogged 🌱
- Apply mulch to retain soil moisture and suppress weeds
- Prune dead or damaged stems promptly
Don't
- Avoid overwatering, which can lead to root rot ❌
- Do not fertilize late in the season to prevent weak growth
- Refrain from planting in heavy, poorly-drained clay soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Double Blue Geranium questions
What zones can Double Blue Geranium grow in?
Double Blue Geranium 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 Double Blue Geranium deer resistant?
Yes — Double Blue Geranium is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Double Blue Geranium bloom?
Double Blue Geranium typically blooms in early to mid-summer through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Double Blue Geranium need full sun?
Double Blue Geranium does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Geranium to compare

Bigroot Geranium
Geranium macrorrhizum

Wild Geranium
Geranium maculatum

Cranesbill 'Rozanne'
Geranium x magnificum 'Rozanne'

Showy Cranesbill
Geranium x magnificum 'Bevan's Variety'

Azure Rush Geranium
Geranium incanum 'Azure Rush'

Cranesbill 'Orion'
Geranium maculatum 'Orion'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Double Blue Geranium 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.







