Paeonia lactiflora Dr Alexander Fleming
Paeonia lactiflora Dr Alexander Fleming
Paeonia lactiflora Dr Alexander Fleming
Paeonia lactiflora Dr Alexander Fleming
Paeonia x lactiflora Dr Alexander Fleming
Chinese Peony, Common Garden Peony
It did not flower.
olivier, 20/08/2025
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Description
Paeonia lactiflora Dr Alexander Fleming is a very beautiful peony variety, appreciated for both its extraordinary fragrance and the obvious beauty of its flowers. They are large, very double, perfectly round, of a medium pink with a beautiful intensity, nuanced with white in the centre and carmine on the periphery. Its numerous lateral buds ensure long and abundant flowering in May-June, earlier or later depending on the climate. These flowers, carried on sturdy stems, are impeccable in the garden but also in bouquets. Easy to grow, Chinese Peonies thrive in any loose and rather moist soil, in the sun. Robust and faithful, they sometimes take a little time to settle, but they develop year after year and can live well over 50 years, even surviving the one who planted them.
Chinese herbaceous peonies are mainly derived from Paeonia lactiflora, a perennial herbaceous plant native to Central and Eastern Asia (from eastern Tibet, northern China, to eastern Siberia), where it naturally grows in woods and meadows. This plant belongs to the Ranunculaceae or Paeoniaceae family.
The Dr Alexander Fleming variety, awarded by the Royal Horticultural Society in England, apparently originates from crossbreeding between the cultivars 'Bunker Hill', a dark raspberry pink, and the famous 'Sarah Bernhardt', a pale silver pink. Its country of origin is still subject to controversy, being between England, France and the Netherlands. From spring onwards the plant forms a herbaceous and bushy clump, moderately dense, reaching about 80 cm (32in) in all directions. Its large fully double flowers, with a diameter of 15 cm (6in), appear in May-June, earlier or later depending on the climate, lasting for about three weeks. They emerge as a large dark pink bud and then open into a carefully disordered pompom where different shades of pink blend together. Their colour is a very fresh medium pink, with white tints on the petals in the centre, while the outer petals are touched with carmine. The vegetation of this variety is good. The young purple and shiny foliage unfolds into large, highly dissected medium green leaves. They are carried on a petiole that divides into 3, with lanceolate or ovate-lanceolate segments. The leaflets are entire or sometimes lobed. The vegetation disappears in winter, while the buds persist at ground level and will develop again in spring. This long-lived perennial plant grows from a large fleshy root that does not appreciate being moved.
Peonies are among those plants that form the foundation of a garden. In the past every garden, from the humblest to the most elaborate, proudly displayed clumps of peonies that made their way into the house, keeping lilacs and bluebells company in bouquets. Opulent and generous, beautifully fragrant, the Chinese peony Dr Alexander Fleming thrives in flowerbeds or alongside pathways, in combination with timeless perennials such as columbines, bellflowers, foxgloves, bearded irises, carnations, or Christmas roses. It can also be grown in the vegetable garden to supply cut flowers for the house. Growing it in a pot is not recommended, as its needs will not be met. Over time, the peony becomes majestic and blooms more and more abundantly, producing up to 60 flowers. By combining different varieties with staggered flowering, it is possible to have flowers for 6 weeks from spring to early summer.
3/5 high quality eyes, sold individually in peat pots.
Paeonia lactiflora Dr Alexander Fleming in pictures
Flowering
Foliage
Plant habit
Botanical data
Paeonia
x lactiflora
Dr Alexander Fleming
Ranunculaceae
Chinese Peony, Common Garden Peony
Cultivar or hybrid
Planting and care
The best time to plant peonies is in autumn. Install in a sunny or well-lit location, spaced 60 cm (24in) apart. They appreciate cold winters that promote dormancy and flower formation. The soil should be loose, deep, fertile, and moist. They need space and are sensitive to competition from other species. Prepare a hole 50 cm (20in) deep and mix organic fertiliser into your soil, partially backfill, place your plants inside, and cover with 6 cm (2in) of soil above the eyes. After planting, tamp down and water generously. Our bouquet tip: cut your peonies at sunrise when the buds start to colour. Don't delay in putting them in water.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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