Protea cynaroides white

White King Protea

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White-flowering cultivar of King Protea, noted for large, striking blooms and tough leathery leaves. Native to South African fynbos. Best as cut flower or outdoor shrub in mild climates.
yard Outdoor plants wb_sunny Half-shade pets Pet Friendly
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Plant Details

Common Name White King Protea
Family Proteaceae
Genus Protea
Species Cynaroides
Variety White Cultivar
Origin South Africa (Western Cape)
Blooming Winter to Spring, large flower heads
Leaf Color Grey-green foliage with white bracts
Sunlight Half-shade
Category Outdoor plants
Pet Friendly check Yes
yard

Care & Maintenance

terrain
Soil

Acidic, well-draining sandy soil; low phosphorus fertilizer sensitive

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Watering

Allow soil to dry between waterings; avoid wet feet and root rot conditions

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Sunlight & Care

Full sun required outdoors; high light near window indoors to prevent leggy growth

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Fertilization

Use specific protea feed sparingly during growing season only, low salt tolerance

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Pruning

Prune after flowering to maintain shape and remove dead flower heads

Pest Control Aphid Root Rot Fungus Scale Insect Thrip

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
50° – 86°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
35% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2500 – 4000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 60%
% volumetric
Water content in the growing medium
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Soil EC
350 – 800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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