Hypericum Star Hypearl

St. John's Wort, Hypericum

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Compact evergreen shrub featuring bright yellow flowers followed by persistent red berries; suitable for pots or garden borders.
yard Kitchen garden plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name St. John's Wort, Hypericum
Family Hypericaceae
Genus Hypericum
Species Hypericum × Hybridum
Variety Star Hyperic
Origin Europe / Cultivar
Blooming Late spring to summer, berries persist into winter
Leaf Color Deep green foliage with red berries
Sunlight Sun
Category Kitchen garden plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-draining sandy loam or potting mix with perlite

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Watering

Keep soil evenly moist during growth, reduce in dormancy to prevent root rot

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Sunlight & Care

Requires full sun for best flowering; indoors needs bright indirect light

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Fertilization

Apply balanced liquid fertilizer every 2 weeks during active growing season

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Pruning

Prune after flowering to maintain shape and remove dead wood

Pest Control Aphid Leaf Miner 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
50° – 90°
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)
3000 – 18000
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
20% – 65%
% 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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