Delphinium elatum Hollands Glory

Holland's Glory Delphinium

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A robust perennial Delphinium producing tall spikes of deep blue flowers with white centers, ideal for cottage gardens and borders in full sun.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Holland's Glory Delphinium
Family Ranunculaceae
Genus Delphinium
Species Elatum
Variety Holland's Glory
Origin Europe / Cultivated Hybrid
Blooming Summer flowering spikes, often repeat bloom if deadheaded
Leaf Color Grey-green to blue-green
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

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Soil

Rich, fertile, well-drained soil with good organic matter; neutral to slightly alkaline pH preferred.

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Watering

Keep soil consistently moist during growth phase. Avoid overhead watering on foliage to prevent powdery mildew.

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Sunlight & Care

Requires full sun for strong stems and maximum flower production; tolerate light afternoon shade in hot climates.

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Fertilization

Apply balanced liquid fertilizer every two weeks from spring until buds form. Use high-potash feed for blooms.

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Pruning

Cut back completely after flowering in autumn or deadhead spent spikes to encourage second flush.

Pest Control Aphid Slug Snail 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 10 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

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Temperature
41° – 82°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
6000 – 30000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 70%
% 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 elatum Hollands Glory? Select a symptom to diagnose and fix the issue.

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