Helenium amarum Dakota Gold

Bitter Sneezeweed 'Dakota Gold'

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Perennial xeric herb with bright yellow daisy-like blooms and aromatic bitter foliage. Native to southwestern US prairies. Hardy, drought-tolerant ornamental suitable for sunny borders.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Bitter Sneezeweed 'Dakota Gold'
Family Asteraceae
Genus Helenium
Species Amarum
Variety Dakota Gold
Origin Southwestern USA, Mexico
Blooming Summer to early autumn
Leaf Color Grey-green, blue-grey
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Well-drained sandy or loamy soil; avoid heavy clay. Tolerates poor soil.

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Watering

Drought tolerant once established. Water deeply but infrequently. Reduce in winter dormancy.

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Sunlight & Care

Full sun (6+ hours). Not suitable for low light indoor environments.

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Fertilization

Low nutrient requirement; apply compost at planting only. Avoid over-fertilizing.

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Pruning

Deadhead spent blooms to encourage rebloom or cut back after flowering for neatness.

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
23° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 60%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
5000 – 100000
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
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Soil Moisture
10% – 40%
% 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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