Agastache foeniculum

Anise Hyssop / Fennel Flower Agastache

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Aromatic perennial herb with a fennel-like scent and purple-blue flower spikes in summer; highly attractive to pollinators and bees.
yard Outdoor plants wb_sunny Half-shade / Sun pets Pet Friendly
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Plant Details

Common Name Anise Hyssop / Fennel Flower Agastache
Family Lamiaceae
Genus Agastache
Species Foeniculum
Origin Western North America
Blooming Summer to early autumn, purple-blue spikes.
Leaf Color Grey-green to dark green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly check Yes
yard

Care & Maintenance

terrain
Soil

Well-drained sandy or loamy soil, tolerates poor soils

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Watering

Drought tolerant once established, water deeply but infrequently to prevent root rot

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Sunlight & Care

Requires full sun for best flowering and oil production

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Fertilization

Low nutrient needs, minimal fertilizer in spring

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Pruning

Deadhead spent flowers to encourage rebloom, cut back hard in late autumn

Pest Control Aphid Leafhopper 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 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting 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
14° – 90°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
30% – 60%
% 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)
400 – 2000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
15% – 50%
% volumetric
Water content in the growing medium
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Soil EC
400 – 2500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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