Eryngium Magical White Falls

White Sea Holly

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Architectural perennial sea holly featuring rigid upright stems with striking white bracts and silver-blue foliage, prized for drought tolerance.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name White Sea Holly
Family Apiaceae
Genus Eryngium
Species X Zabelianum
Variety Magical White Falls
Origin Cultivated Hybrid (Europe/Asia)
Blooming Late summer to autumn, featuring distinctive white bracts surrounding flower heads
Leaf Color Silver-blue foliage with white bracts
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained sandy or gravelly soil, avoid heavy clay to prevent root rot

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Watering

Drought tolerant once established; water moderately during establishment, reduce in winter

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Sunlight & Care

Requires full sun exposure for best bract color and structural integrity

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Fertilization

Low nutrient requirements; apply compost annually in spring before growth begins

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Pruning

Cut back to ground level after flowering or late autumn for tidiness

Pest Control Aphid Mealybug 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 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
5° – 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)
10000 – 40000
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
water
Soil Moisture
20% – 40%
% volumetric
Water content in the growing medium
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Soil EC
300 – 600
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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