Protea Susara

Protea 'Susara'

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A striking ornamental shrub from South Africa featuring large artichoke-like flower heads. Valued in floriculture for cut flowers and requires acidic soil.
yard Outdoor plants wb_sunny Sun pets Pet Friendly
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Plant Details

Common Name Protea 'Susara'
Family Proteaceae
Genus Protea
Species Cynaroides
Variety Susara
Origin South Africa
Blooming Winter to Spring, primarily cut flower production
Leaf Color Grey-green
Sunlight Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Acidic sandy loam or peat mix. Strictly no lime. Low nutrient content required.

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Watering

Deep but infrequent watering. Allow substrate surface to dry between waterings to prevent root rot.

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Sunlight & Care

Full sun essential. Indoors requires maximum southern exposure to prevent etiolation and ensure blooming.

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Fertilization

Low frequency. Use specialized protea fertilizer in spring only. Avoid high nitrogen.

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Pruning

Remove spent flower heads and dead wood after flowering season to maintain shape.

Pest Control Aphid Protea Weevil 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 6 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° – 82°
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)
1500 – 30000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
5 – 30
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
25% – 65%
% volumetric
Water content in the growing medium
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Soil EC
200 – 800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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