Digitalis grandiflora

Yellow Foxglove

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A hardy biennial or short-lived perennial featuring tall spikes of large, yellow bell-shaped flowers with brown veining on grey-green foliage.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Yellow Foxglove
Family Plantaginaceae
Genus Digitalis
Species Grandiflora
Origin Caucasus / Turkey
Blooming Summer, typically June to July
Leaf Color Grey-green with distinct veining
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Rich, well-drained loamy soil; moist but not waterlogged.

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Watering

Regular watering during growth and flowering. Reduce after die-back in late season.

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Sunlight & Care

Full sun to partial shade; prefers cooler conditions during peak summer heat.

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Fertilization

Apply balanced liquid fertilizer monthly during active vegetative growth phase.

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Pruning

Cut back spent flower spikes immediately to prevent excessive self-seeding or encourage rebloom.

Pest Control Aphid Leaf Miner Slug 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
23° – 86°
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)
2000 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 70%
% 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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Common Problems

Something wrong with your Digitalis grandiflora? Select a symptom to diagnose and fix the issue.

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