Paulownia tomentosa

Princess Tree

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Fast-growing deciduous tree with large heart-shaped leaves and fragrant purple flowers, native to China but potentially invasive elsewhere.
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Plant Details

Common Name Princess Tree
Family Paulowniaceae
Genus Paulownia
Species Tomentosa
Origin China
Blooming Spring, fragrant purple bell-shaped flowers
Leaf Color Green with reddish new growth
Sunlight Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Adaptable, prefers well-drained loamy soil, tolerates various pH levels including slightly acidic to alkaline.

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Watering

Moderate during establishment; drought tolerant once mature. Avoid waterlogging to prevent root rot.

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Sunlight & Care

Full sun required for vigorous growth and flowering; tolerates partial shade but may produce fewer blooms.

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Fertilization

Apply balanced slow-release fertilizer in early spring before new growth emerges.

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Pruning

Prune dead wood and suckers in late winter or early spring to maintain shape and control invasive spread.

Pest Control Aphid Leaf Miner Scale Insect

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 3 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
-4° – 100°
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 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1500 – 2500
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 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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