North Shore Plant Club Sep 25, 2026

Achillea: From Ancient Herb to Modern Cultivar

A cultivar-development story, for garden clubs

Achillea

The soldier's wound-herb, reinvented as a border star

The genus is named for Achilles, who legend says used yarrow to stanch his soldiers' wounds at Troy — for most of its history this was medicine, not a garden plant. The compact, color-shifting cultivars on the market today are the result of a deliberate, decades-long breeding push. Here's how six generations of breeders got there, drawn from the club's own plant-record research.

The through-line

Every era below chases the same five things: broader color, sturdier stems, a more compact habit, longer bloom, and tighter control — won through sports, controlled crosses, and plant patents.

Before cultivars

A battlefield herb, not a border plant

Yarrow's folk names — soldier's woundwort, nosebleed plant, carpenter's weed — all point to the same job: pressed into cuts to stop bleeding, a use recorded across cultures for centuries before anyone thought to breed it for a border. Two wild species supplied everything that followed. Achillea millefolium (common yarrow) gave the ferny, finely-divided foliage, white flowers, and roadside toughness. A. filipendulina added tall, rigid stems and dense, flat heads of strong gold flowers.

Mid-20th century

Hybrid structure becomes the goal

'Coronation Gold' and later 'Moonshine' crossed the two wild species and proved the value of sterile, clump-forming hybrids: silvery-green foliage, upright stems that didn't need staking, and a dependable, long-lasting yellow bloom instead of the wild plant's rangy habit and short show. Being sterile hybrids, neither sets viable seed — a trait breeders would keep leaning on for decades.

1990s

European breeders widen the palette

'Summer Pastels' (1990) made seed-grown pastel mixtures mainstream — it's a true open-pollinated strain, not a single clone, so every packet blooms a slightly different mix of soft colors. German breeder Ernst Pagels paired that widened palette with sturdier hybrid structure: his 'Credo' (1990) brought soft yellow tones with RHS Award-of-Garden-Merit-winning reliability, and 'Walther Funcke' (likely 1995) followed with brick-red and orange tones on the same dependable frame.

2000s

Sports become named, patented colors

Individual color forms selected out of the 'Summer Pastels' population were fixed and patented as their own true-breeding cultivars — all four below trace to the same Dutch breeding house (K. Sahin, Zaden B.V.), though across two different in-house breeders.

'Strawberry Seduction'
PP18,401 · strawberry-red aging to buff-yellow

'Apricot Delight'
PP18,738 · apricot-salmon aging to pale pink

'Pomegranate'
PP20,763 · deep red, aging grayish-red

'Saucy Seduction'
PP20,782 · rose-pink, sister sport to 'Pomegranate'

2010s

Series breeding targets consistency

The New Vintage series (Ball Horticultural, breeder JinJoo Bae) and the Milly Rock series (Florensis, breeder Tobias Braeunig) both chased matched color families on compact, uniform mounds — less flopping, repeat bloom, and every color in a series built to sell as a coordinated set. Each cultivar's own patent documents its exact parentage and confirms it's propagated asexually, so the plant a customer buys is genetically identical to the original selection.

2020s

One breeder, two different projects

Hans Hansen at Walters Gardens is behind three of the club's newest yarrows — but they split into two distinct breeding goals rather than one trend.

Color & branching

'Sassy Summer Taffy' · 'Firefly Peach Sky' · 'Firefly Red Pop'

Heavily branched, sturdy stems carrying flowers that visibly shift color as they age — salmon-pink to peachy-pink, peach to yellow, and a stable cherry red. 'Firefly Red Pop' reached PP36,061 in 2024, the newest patent in the club's whole yarrow collection.

Form & foliage

'Peter Cottontail'

A different species entirely (Achillea ptarmica, not millefolium): pure-white, double, mostly-sterile pom-pom flowers on simple lance-shaped leaves — the innovation here is habit and foliage contrast, not color.

See it happen

Same flower, weeks apart

Several of the newest cultivars don't just hold one color — they visibly shift as each flower head ages, so a single plant can carry two colors in bloom at once.

'Strawberry Seduction'

→

strawberry-red → buff-yellow

'Milly Rock Red'

→

red → rosy pink

'Firefly Peach Sky'

→

peach → yellow

For your own garden

Which cultivar for you?

Best for cutting gardens

'Strawberry Seduction'

Long, sturdy stems and that striking red-to-yellow color fade make each stem a two-tone bouquet on its own.

Best for a tight border, won't flop

New Vintage or Milly Rock series

Bred specifically for compact, self-supporting mounds — the whole point of the series was less staking, less flopping.

Best for pollinators & fragrance

'Firefly Peach Sky'

One of the few yarrows in the collection with genuinely fragrant flowers, not just aromatic foliage — bees and butterflies notice.

Best soft, mixed palette from seed

'Summer Pastels'

A true seed-grown mixture, not a single clone — every packet blooms a slightly different, unpredictable spread of pastels.

Best low-fuss filler

'Moonshine'

Silvery foliage, dependable yellow bloom, and sterile — it won't seed itself around the bed uninvited.

Most unique form

'Peter Cottontail'

Pure white, double, pom-pom flowers on a completely different foliage type — the one to grow if you want your yarrow not to look like yarrow.

Breeding targets

Color range · Sturdy stems · Compact habit · Longer bloom · Less flopping · Uniformity

Selected milestones drawn from the club's own plant-record audits. Where no separate introduction year was documented, a patent's filing year is used rather than its later grant year, so each cultivar stays grouped with the decade it was actually developed in.

Curious which of these we currently carry? Ask any North Shore Plant Club staff member — many of the cultivars above are already in our catalog.