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Hardy perennial
Asteraceae
Perennials
Yarrow ‘Peter Cottontail’
Yarrow
Achillea 'Peter Cottontail': 60 cm high and 75 cm spread, full sun. White, ivory flowers in June-September. Zone 3; choose a soil compatible with its moisture needs.
- Exposure
- Sun
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common nameYarrow ‘Peter Cottontail’
FamilyAsteraceae
GenusYarrow
CultivarPeter Rabbit
TypeHardy perennial
Botanical nameYarrow
Yarrow ‘Peter Cottontail’ (Achillea ‘Peter Cottontail’) is well-suited for mid-border placement and group plantings. It forms an upright clump with finely cut green foliage, bringing a light and decorative texture to flowerbeds. From June to September, its numerous white flowers, grouped in soft clusters, create a bright and country-style effect. Reaching approximately 58.5 cm (23 in) in height and 76 cm (30 in) in width, it is perfect for beds, borders, rock gardens, and sunny landscape designs. Its abundant flowering, elegant habit, and ease of cultivation make it a choice perennial for adding freshness, movement, and brightness to gardens in Quebec.
Soil choice is essential for Yarrow ‘Peter Cottontail’: well-drained, rather light; avoid water pockets around the crown. The preferred exposure is full sun. After planting Yarrow ‘Peter Cottontail’, water enough to thoroughly moisten the root ball. Once established, allow the surface to dry between waterings and prioritize drainage, especially during thaws. A spacing of about 75 cm between centers is a starting point, to be adjusted according to observed vigor. The indicated hardiness zone is 3, to be assessed according to your garden's conditions.
In a planting of Yarrow ‘Peter Cottontail’, remove spent inflorescences when their appearance no longer suits you, while retaining healthy leaves. An overly rich location can soften the stems; reserve well-drained soil and measured fertilization for yarrows. For associations, consider catmints, upright sedums, and border salvias of varieties with similar needs. Keep its 60 cm height in mind to place lower plants on the correct side and allow the flowers to be visible from June to September.
Planting guide
From planting to establishment.
Spacing / density
29.5 inches
Best planting time
Spring after the thaw or early autumn, allowing the roots to settle before the severe cold.
Propagation
Tuft Division
Growing method
Achillea ‘Peter Cottontail’: Spring after the thaw or early fall, allowing the roots time to settle before the severe cold. After planting Achillea ‘Peter Cottontail,’ water enough to deeply moisten the root ball. Once rooted, allow the surface to dry between waterings and prioritize drainage, especially during thaws. An overly rich location can soften the stems; reserve well-drained soil and measured fertilization for yarrow.
Soil and care
The right care,at the right time.
Soil pH
Neutral to slightly alkaline
Care level
Easy
Watering
After planting Achillea 'Peter Cottontail', water enough to thoroughly moisten the root ball. Once established, allow the surface to dry between waterings and prioritize good drainage, especially during mild spells.
Soil type
Well-drained, rather light; avoid waterlogged soil around the root crown
Fertilization
Fertilizer for flowering
Moisture
Low to medium after establishment; priority drainage
Seasonal care
Yarrow 'Peter Cottontail': remove spent flowerheads when their appearance is no longer desirable, while retaining healthy foliage. During its flowering period (June-September), also monitor for damaged stems and neighboring plants that might obscure the clump.
Container growing
A garden,within reach.
Recommended pot size
A stable, perforated container, significantly wider than the root ball; size to be adapted to the format sold and the adult development.
To try Achillea 'Peter Cottontail' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 cm). Water must drain freely after each watering; check the root ball more often than if it were in the ground. Plan to protect the container in winter depending on your climate.
Bloom and dimensions
Its place,in your garden.
Mature height
23 inches (58.5 cm)
Width / spread
30 inches (76 cm)
Flower color
White
Foliage color
Green
Foliage type
Deciduous, finely dissected
Growth rate
Fast
Growth habit
Erected
Fragrance
Not documented for this selection
Bloom period
June-September
Garden associations
In goodcompany.
Companion plants
Companion plants to consider for Yarrow ‘Peter Cottontail’: catmint, upright sedums, border sages. Choose varieties that tolerate sun and comparable moisture; allow each clump its adult space.
Plants to avoid
Around 'Peter Cottontail' Yarrow, especially avoid neighbors that would cover its leaves or strongly compete with its rootball. Light, water, and size compatibility take precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Achillea 'Peter Cottontail'?
Expect sun and suitable soil (draining, rather light; avoid water pockets around the crown). A soil that is too rich can weaken the stems; reserve well-draining soil and moderate fertilization for yarrows.
Where should I plant Achillea 'Peter Cottontail'?
Allow about 60 cm in height and 75 cm in width when mature. Approximately 75 cm between centers, to be adjusted according to the actual clump development. This size is suitable for use in the middle of a flowerbed and for group planting.
When does Yarrow 'Peter Cottontail' bloom?
The period indicated is June-September. The flower palette is white, ivory. The exact date and duration depend on the climate, season, and plant establishment.
How to water and care for Yarrow 'Peter Cottontail'?
After planting Achillea 'Peter Cottontail', water enough to thoroughly moisten the root ball. Once established, allow the surface to dry out between waterings and prioritize drainage, especially during thaws. Remove spent inflorescences when their appearance is no longer desirable, while retaining healthy foliage.
Can Achillea 'Peter Cottontail' be grown in a pot?
To try Achillea 'Peter Cottontail' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 cm). Water should drain freely after each watering; check the soil more often than you would for plants in the ground. Plan to protect the container in winter depending on your climate.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Its white flowers attract butterflies and several beneficial pollinating insects during the summer. It helps make flowerbeds more lively while promoting biodiversity in the garden.
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