Achillea 'Credo' (yarrow 'Credo') — Columnar upright, Clump forming

Overview

Achillea 'Credo' is a columnar upright, clump forming herbaceous perennial in the genus Achillea, part of the Asteraceae family, with deciduous foliage. It typically grows around 1-1.5 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Achillea 'Credo' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. It is drought resistant and low maintenance. Suggested uses include cottage and informal garden, gravel garden, wildflower meadow and wildlife gardens. It is native to Middle Europe, Subarctic America, Western Canada, Southeastern Europe, China, Liechtenstein, Northern Ireland and Romania.

About

Achillea 'Credo' is a herbaceous perennial cultivar of the Achillea genus, commonly known as yarrow. It forms clumps with a columnar upright habit, reaching a height of 1 to 1.5 metres and spreading 0.5 to 1 metre over 2 to 5 years. This deciduous plant thrives in full sun and suits south, east, or west-facing aspects, tolerating both exposed and sheltered conditions. It grows well in chalk, loam, or sand soils with a range of pH levels, preferring moist but well-drained to well-drained soil. 'Credo' is drought resistant, low maintenance, and offers interest in spring and summer.

About the genus

Achillea is a genus of flowering plants in the family Asteraceae. The plants typically have frilly leaves and are known colloquially as yarrows, although this common name usually refers to A. millefolium.

Wikipedia contributors, "Achillea", CC BY-SA 4.0 — Achillea

Growing conditions

Best soil and position for Achillea

Sunlight: Full sun
Soil type: Chalk, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained, Well-drained
Aspect: South-facing, East-facing, West-facing
Exposure: Exposed, Sheltered
UK hardiness: H7

Plant details

Achillea 'Credo' size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Columnar upright, Clump forming
Foliage: Deciduous
Height: 1-1.5 metres
Spread: 0.5-1 metres
Time to full height: 2-5 years
Suggested uses: Cottage and informal garden, Gravel garden, Wildflower meadow, Wildlife gardens
Native to: Middle Europe, Subarctic America, Western Canada, Southeastern Europe, China, Liechtenstein, Northern Ireland, Romania
Fragrance: Mild, herbal scent typical of yarrow.

Care notes

Pruning and caring for Achillea 'Credo'

Cultivation: Prefers full sun and well-drained soil; drought tolerant once established; low maintenance; suitable for borders and naturalistic plantings.
Pruning: Cut back to ground level in late winter or early spring to encourage fresh growth and maintain shape.
Propagation: Seed, Division in spring
Pest resistance: Aphids
Disease resistance: Powdery mildews

Frequently asked questions

How do I grow Achillea 'Credo'?

Prefers full sun and well-drained soil; drought tolerant once established; low maintenance; suitable for borders and naturalistic plantings.

Where is the best place to plant Achillea 'Credo'?

Achillea 'Credo' prefers full sun. It suits exposed and sheltered positions.

What soil does Achillea 'Credo' need?

Achillea 'Credo' is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.