Delphinium Emerald

Larkspur / Delphinium Emerald

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Hardy perennial larkspur featuring tall spikes of vibrant emerald-blue flowers and deeply cut foliage, ideal for cottage gardens in temperate climates.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Larkspur / Delphinium Emerald
Family Ranunculaceae
Genus Delphinium
Species X Cultorum
Variety Emerald
Origin Cultivated Hybrid (European/Asian ancestry)
Blooming Summer (June-August)
Leaf Color Grey-green to blue-green
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, deep, moisture-retentive but well-drained soil with high organic matter and neutral pH.

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Watering

Keep moist during growth and flowering; reduce significantly after blooming to prevent crown rot.

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Sunlight & Care

Requires full sun for strong stems; some afternoon shade in extreme heat zones to prevent scorching.

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Fertilization

Apply balanced slow-release fertilizer at planting; liquid feed monthly during active growth phase.

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Pruning

Deadhead spent flowers to encourage rebloom or cut back hard in autumn for winter dormancy.

Pest Control Aphid Caterpillar Slug Snail

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 6 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
23° – 95°
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)
2500 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1500 – 6000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 80%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

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

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