🌼 Flore Pleno Chamomile

Chamaemelum nobile ‘Flore Pleno’
Roman chamomile gone double: pompon white flowers on a low, apple-scented perennial mat — the cottage-garden chamomile that earns its border spot.
Sun
Full sun to part shade (afternoon shade in hot climates)
Days to harvest
Perennial; flowers from year two, foliage from year one
Spacing
9–12 inches apart
Soil pH
6.0–7.0, well-drained
Zones
Zones 4–9 as a perennial; in Florida, a cool-season perennial in part shade with steady moisture

What it looks like

Chamaemelum nobile (species) — Chamaemelum nobile
Chamaemelum nobile, the species (no verified photo of ‘Flore Pleno’ itself exists). Photo: Oceancetaceen – Alice Chodura, Public domain.
Chamaemelum nobile (species) — ローマカミツレ
Chamaemelum nobile, the species (no verified photo of ‘Flore Pleno’ itself exists). Photo: KENPEI, CC BY-SA 3.0.
Chamaemelum nobile (species) — Chamaemelum nobile 0zz
Chamaemelum nobile, the species (no verified photo of ‘Flore Pleno’ itself exists). Photo: Photo by David J. Stang, CC BY-SA 4.0.

Why this variety

Flore Pleno is Roman chamomile dressed for a party. Where the species carries simple single daisies, this old cottage-garden form carries fully double, pompon-like white flowers — button chrysanthemums in miniature — on a low, spreading perennial mat of feathery, apple-scented foliage. It is the chamomile you plant at the front of a border when you want flowers and fragrance, not just a tea ingredient.

It is also a genuinely useful groundcover: low, evergreen-ish in mild winters, fragrant when brushed, and floriferous through summer in cool climates. In Florida it is a cool-season star rather than a summer workhorse — plant it for fall-to-spring bloom and fragrance, give it part shade and steady water, and it will reward you while summer herbs are still sulking.

How to grow

Buy plants or divisions; double flowers rarely come true from seed, and seed-grown plants revert toward single flowers. Plant in spring or fall in full sun to part shade and well-drained, sandy or loamy soil, spacing 9–12 inches apart so the mat can spread without crowding.

Water in well and mulch lightly to hold moisture. Deadhead spent pompons to keep the mat tidy and encourage more blooms, and shear the mat lightly after the main flush to refresh the foliage. Divide every 2–3 years in spring or fall to keep plants vigorous and to make new plants.

Water & feeding

Water regularly, keeping soil lightly moist but never soggy. Roman chamomile likes consistent moisture more than German chamomile does, and in Florida’s dry cool season a weekly deep watering keeps the mat green and flowering.

Feed lightly with compost or castings in spring. Rich soil pushes leafy growth at the expense of flowers; a lean diet keeps the pompons coming.

Common problems

  • Heat fade in deep summer — Flore Pleno is at its best in cool weather. In Florida, expect a summer rest and a fall revival, not year-round bloom.
  • Crown rot in soggy soil — plant in well-drained soil or a raised bed where summer rain pools, and keep mulch off the crown.
  • Reversion to single flowers in seed-grown plants — buy named plants or divisions, and rogue out any single-flowered stems if you want to keep the double form pure.
  • Aphids on buds in warm weather — pick off affected buds and let the plant outgrow them; a stressed, heat-baked plant is the one aphids find first.

Harvest

Pick double flower heads as they open fully, in the morning after dew dries, for bouquets, drying, or tea — the doubles dry well and look striking in a jar, though they yield less per head than single German chamomile flowers. Spread heads in a single layer out of direct sun until crisp, then store whole in a sealed jar.

Brush the foliage for scent, shear lightly after bloom for a fresh mat, and divide in spring or fall for new plants. Flore Pleno’s harvest is half flowers, half fragrance, and both are worth the small footprint.

Nerdy fact: Flore Pleno’s pompons are a petal-count trick: the double flowers are made by turning the yellow disc florets of a normal daisy into extra white ray petals, so the flower looks like a button and has almost no yellow center left. It is the same flower, rewritten as all petals — prettier in a vase, and a neat lesson in how daisies are built.

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Saving seeds

Flore Pleno is a double-flowered Roman chamomile, and double flowers rarely come true from seed — buy plants or divisions, and divide the mat every 2–3 years to make new plants. The Saving seeds section of the Chamomile guide covers seed for the species generally.