Delphinium grandiflorum 'Blue Mirror'
Best dwarf perennial for Southern gardeners seeking vibrant, long-lasting summer color.
This dwarf perennial brings the intense, gentian-blue color usually reserved for finicky delphiniums into a manageable, heat-tolerant package. While you’ll need to treat it as a biennial to keep the display fresh, the trade-off is a reliable, deer-resistant spike of color that thrives where others wilt.
$17.00
Who it's for
- Gardeners seeking vibrant, cool-toned floral accents
- Container gardeners wanting low-maintenance, self-supporting plants
- Flower enthusiasts desiring extended seasonal bloom time
Who should skip it
- Gardeners in humid climates prone to pests and disease
- Pet owners and parents of small children
- Gardeners in hot, humid regions seeking long-lived perennials
Performance breakdown
Bloom Longevity
Consistent deadheading unlocks a reliable three-month window of vibrant color.
Landscape Versatility
Compact stature makes it a perfect fit for borders and containers.
Pest Resistance
Deer-resistant foliage keeps common garden intruders at bay effectively.
Pollinator Appeal
Bright blue spikes act as a reliable magnet for local pollinators.
Maintenance Ease
Requires regular deadheading and specific soil conditions to truly thrive.
Cut Flower Utility
Provides a week of vase life if harvested at the right moment.
Key Specs
Mature Height
24 inches
Bloom Time
June through September
Hardiness Zones
USDA 3-7
Spacing Requirement
12-18 inches
Ships as
1 PINT 28.86 CU IN.
Soil Preference
Close to neutral pH
Exposure Requirement
Full Sun
Warranty
1 year money-back guarantee
Life Cycle
Perennial, Biennial
Watering Needs
Moderate
Know before you buy
Still have a question?
Ask Metto anything about the Delphinium grandiflorum 'Blue Mirror' before you decide.