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Peter Cottontail Yarrow - Bare Root Plant

$13.70
$13.70 $25.68
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Size : Bare Root Plant
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Bare root arrives dormant

Expect new growth in about 6 weeks after planting. Until then it can look lifeless, so you won’t be able to tell within 24 hours of arrival whether it will grow.

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About the Product

Peter Cottontail is a sneezewort-type yarrow with a softer, airier look than the common flat-topped kinds. Instead of dense plates, it carries loose sprays of rounded, ivory white flowers that read almost like baby's breath from a distance.

It grows as a low, polished mound under two feet tall and blooms for a long stretch from early summer into early fall. It suits edging, containers, rock gardens and cottage borders, and the flowers work well cut or dried. It handles sun or part shade and is seldom bothered by deer or rabbits.

What it looks like

Loose, open sprays of rounded, fully double ivory white flowers, each about half an inch across, with a button-like, ruffled center. The flowers are spaced apart in airy clusters rather than packed plates. Leaves are narrow, lance-shaped, green and finely toothed, 2 to 3 inches long. The plant forms a low, tidy, mounded clump 18 to 24 inches tall and 28 to 30 inches wide. At peak bloom the mound is dotted all over with small white pom-pom flowers.

Growing it with lavender

Peter Cottontail likes the same sunny, well-drained ground as lavender, and its airy white sprays soften the edges of a lavender planting and fill gaps as lavender finishes its first bloom.

Care

Grow in full sun to part shade in average, well-drained soil; it tolerates dry spells once established. Hardy in USDA zones 3-8. Deadhead or lightly shear faded sprays to keep flowers coming into fall.

At a glance

  • Botanical name: Achillea ptarmica
  • Flower color: Ivory white
  • Foliage: Green
  • Growth habit: Low, rounded mound
  • Mature size: 18–24 in tall × 28–30 in wide
  • USDA hardiness zones: 3–8
  • Light: full sun, part sun to part shade
  • Bloom start: Mid-June
  • Peak bloom: Mid-July
  • Bloom pattern: Long Blooming
  • Deer resistance: Resistant
  • Pollinator value: Great

Sizes and shipping

Dormant bare-root plant, sold in boxes of 25 per variety (order in multiples of 25). Bare-root plants ship or are picked up March 1–May 31 only. They are soil-free, so they may ship to every state in that window. Dormant plants often show little or no top growth on arrival; plant or heel them in promptly.

View Product Details
Mature height
24.0 in
Mature spread
30.0 in
Bloom
Mid-June – peak Mid-July
Fragrance
None
Deer
Resistant

Lavender companion · grow guide

How to grow Peter Cottontail

Yarrow · Achillea ptarmica

Yarrow wants full sun and lean, well-drained soil. Rich soil, extra fertilizer, or wet feet make it floppy and short-lived.

Check my zone & planting dates
Peter Cottontail
  • Full sunLight
  • Low waterFast drainage
  • pH 6.0–8.0Soil
  • Zones 3a–8bHardiness
  • 24″ tall30″ wide
  • ResistantDeer · rabbits resistant
  • Toxic to petsPets
Huckleberry, the farm dog

Huckleberry saysTell me where you grow and I’ll check if Peter Cottontail will thrive there.

Hardy in zones 3a–8b

Spring after hard frost, or early fall at least 6 weeks before the ground freezes.

Dormant bare-root yarrow as it arrives, laid on burlap

When it arrives

Your bare-root plant

Expect a tan, fibrous root mass with a small crown and maybe short gray-green shoots. Soak roots 20-30 min, spread them in the hole, crown level with soil. Plant soon; keep roots moist until then.

Expect new growth in about 6 weeks after planting. Bare root ships March–May while dormant, with little or no top growth, and it can look lifeless until then. That’s normal. Ferny leaves often stay green over winter. New gray-green growth pushes from the base in early spring (about April in Michigan). Flower stems follow in late spring.

You won’t be able to tell within 24 hours of arrival whether a dormant plant will grow.

When to plant

Spring after hard frost, or early fall at least 6 weeks before the ground freezes.

How deep

Set the crown (where stems meet roots) level with the soil surface. Never bury the crown.

Spacing

18-24 in apart. Sneezewort (A. ptarmica) spreads faster; give it room or an edged spot.

Soil

Average to sandy or gravelly loam; tolerates poor soil · pH 6.0–8.0

Fix-it tip: In heavy clay, plant on a slight mound or raised bed and mix in grit. Skip compost-heavy amendments; rich soil causes weak, sprawling stems.

Sun

Full sun (tolerates light part shade).

In shade, stems stretch and flop and colors fade. Six or more hours of sun keeps clumps tight.

Dormant
New growth

Don’t give up on it

Is it alive? What spring looks like

Ferny leaves often stay green over winter. New gray-green growth pushes from the base in early spring (about April in Michigan). Flower stems follow in late spring.

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