Eryngium Magical Blue Falls

Magical Blue Falls Sea Holly

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A hardy perennial sea holly featuring cascading silver-blue foliage and metallic thistle-like flower heads, prized for drought tolerance.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name Magical Blue Falls Sea Holly
Family Apiaceae
Genus Eryngium
Species Eryngium
Variety Magical Blue Falls
Origin Europe / Cultivar
Blooming Late summer to early autumn, spiky blue flower heads
Leaf Color Silver-blue metallic
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-draining sandy or gravelly soil, low fertility required for best growth and root health.

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Watering

Drought tolerant once established. Water deeply but infrequently. Avoid wet feet during winter dormancy.

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Sunlight & Care

Requires full sun exposure for optimal coloration and flowering; tolerates light shade but may flop.

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Fertilization

Minimal requirement. Apply compost at planting time only. Excess nitrogen reduces flower quality.

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Pruning

Cut back dead foliage to ground level in late autumn or early spring before new growth emerges.

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 4 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
thermostat

Growing Parameters

thermostat
Temperature
-4° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 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)
2500 – 4500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
10% – 40%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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