Delphinium Delphis Diamant

Larkspur / Delphinium Diamond

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A hardy ornamental perennial featuring tall spikes of vibrant flowers, typically white or blue in the 'Diamant' cultivar. Requires full sun and cold dormancy.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Larkspur / Delphinium Diamond
Family Ranunculaceae
Genus Delphinium
Species Elatum
Variety Diamant (Delphi Series)
Origin Europe / Hybrid Cultivars
Blooming Summer flowering spikes, typically June to August
Leaf Color Blue-green grey foliage
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Rich, well-drained soil with high organic content; heavy clay requires sand amendment to prevent root rot.

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Watering

Consistent moisture during growth phase; reduce in dormancy. Avoid wetting foliage to prevent powdery mildew.

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Sunlight & Care

Requires maximum exposure (6+ hours direct sun) for vigorous flowering and stem strength.

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Fertilization

Apply balanced granular fertilizer at bud formation; high nitrogen promotes weak stems, low phosphorus reduces blooms.

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Pruning

Deadhead spent flowers to encourage secondary blooming; cut back stalks completely after frost in winter.

Pest Control Aphid Caterpillar Slug Spider Mite

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

thermostat
Temperature
23° – 86°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
10000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2000 – 4500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 65%
% volumetric
Water content in the growing medium
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Soil EC
400 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Delphinium Delphis Diamant? Select a symptom to diagnose and fix the issue.

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