Primula vialii

Vial's Primrose

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Herbaceous perennial featuring tall spikes of red-orange flowers and fuzzy grey-green basal leaves. Native to China and Mongolia.
yard Outdoor plants wb_sunny Shade / Half-shade pets Pet Friendly
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Plant Details

Common Name Vial's Primrose
Family Primulaceae
Genus Primula
Species Vialii
Origin China / Mongolia
Blooming Late spring, tall spikes of red-orange flowers.
Leaf Color Grey-green with white mealiness
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly check Yes
yard

Care & Maintenance

terrain
Soil

Rich, moist but well-drained soil with high organic matter content.

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Watering

Keep consistently moist during active growth. Reduce watering significantly after flowering as plant enters dormancy.

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Sunlight & Care

Full sun to partial shade. Requires cool conditions; avoid intense midday heat in summer.

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Fertilization

Apply balanced liquid fertilizer monthly during spring active growth phase only.

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Pruning

Deadhead spent flower spikes immediately. Cut back foliage in late summer when it dies back naturally.

Pest Control Aphid Powdery Mildew 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 2 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
41° – 79°
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)
600 – 18000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 80%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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