Anisotome lyallii

Anisotome lyallii

Common Names: Giant Carrot, Mountain Celery
Family: Apiaceae
Origin: New Zealand (subalpine to alpine regions)
Plant Type: Herbaceous Perennial

Overview

Anisotome lyallii, commonly known as Giant Carrot, is a striking New Zealand alpine perennial prized for its bold, architectural foliage and natural silver-grey tones. Adapted to harsh mountain conditions, it brings a dramatic, high-country aesthetic to rock gardens and alpine plantings.

Key Features

Foliage: Large, finely divided, deeply lobed leaves with a distinctive silvery-grey to blue-green sheen; softly textured and highly ornamental.
Flowers / Fruit: Tall flower stems emerge in summer, carrying broad umbels of creamy-white flowers that attract native insects.
Form & Habit: Low, spreading basal rosette with upright flowering stems; strong sculptural presence even when not in flower.
Growth Rate: Slow to moderate.
Cultural & Ecological Value: Native alpine species important to high-country ecosystems; valued in restoration and specialist native gardens.

Mature Size

Attribute	Size
Height	40–80 cm (flowering stems taller)
Spread	60–80 cm
Form	Low rosette with upright flower stems

Ideal Growing Conditions

Requirement	Detail
Light	Full sun
Water	Low to moderate once established; dislikes waterlogging
Soil	Very free-draining, gritty or sandy soils
pH Range	Neutral to slightly acidic
Frost Tolerance	Extremely frost hardy; tolerates snow and alpine conditions

Landscaping & Garden Uses

• Feature plant in alpine and rock gardens

• Ideal for dry, exposed, or high-country landscapes

• Complements grasses and other silver-foliaged natives

• Suitable for large containers with excellent drainage

Care & Maintenance

Pruning: Remove spent flower stems; minimal pruning required.
Watering: Water during establishment only; drought tolerant once settled.
Feeding: Generally not required; avoid rich fertilisers.
Pests & Diseases: Generally pest- and disease-free.

Additional Tips

Best grown in open, sunny positions with airflow. Avoid heavy soils or winter wet, especially in lowland gardens.

Fun Fact / Botanical Insight

Despite its common name, Giant Carrot, Anisotome lyallii is not cultivated for food—its name reflects its relationship to the carrot family and its impressive alpine scale.

Why Choose Anisotome lyallii?

For gardeners seeking a true alpine native with bold form, exceptional hardiness, and year-round visual impact, Anisotome lyallii is an outstanding choice.

Pot Size: These are our standard size in 7cm square pots.