Phalaenopsis St. Louis

St. Louis Phalaenopsis Orchid

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Vibrant pink hybrid orchid with glossy dark green leaves. Epiphytic, thriving in bright indirect light and moderate humidity indoors.
yard Indoor plants wb_sunny Half-shade pets Not pet-safe
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com 3-4 in In Stock $26.83 Buy
Amazon.com 3-4 in In Stock $27.28 Buy
Amazon.com 3-4 in Out of Stock $27.45 Buy
Amazon.com 3-4 in In Stock $30.99 Buy
Amazon.com 3-4 in In Stock $30.99 Buy
Merchant Pot Size Availability Price
Amazon.com 5-6 in In Stock $35.48 Buy
info

Plant Details

Common Name St. Louis Phalaenopsis Orchid
Family Orchidaceae
Genus Phalaenopsis
Species Hybrid Complex
Variety St. Louis
Origin Southeast Asia / Hybrid Cultivar
Blooming Long-lasting spikes of pink/magenta flowers, blooms last 3-4 months
Leaf Color Dark glossy green
Sunlight Half-shade
Category Indoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Coarse orchid bark mix with perlite and charcoal for aeration; never standard potting soil

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Watering

Soak roots thoroughly once weekly when media is nearly dry; ensure excellent drainage to prevent root rot

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Sunlight & Care

Bright indirect light only; direct sun causes leaf scorching, use sheer curtains if needed

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Fertilization

Dilute orchid fertilizer (1/4 strength) every 2 weeks during active growth phase only

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Pruning

Cut spent flower spikes above a node to encourage reblooming or cut at base if brown and dead

Pest Control Mealybug Scale Insect 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
64° – 84°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 80%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
1500 – 6000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 2800
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
10% – 35%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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