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Paeonia Itoh Viking Full Moon

Paeonia x Itoh Viking Full Moon
Itoh Peony, Intersectional Peony

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This young plant arrived with well-developed leaves, but unfortunately the soil did not hold around the roots at all. I planted it anyway, but to this day, it has still not sprouted. It languishes, close to the ground, despite all the care given. What a pity!

Françoise Marie, 28/09/2023

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This plant carries a 12 months recovery warranty

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A variety of vigorous and robust hybrid or intersectional Paeony, recognised and sought after for its incredibly bright yellow flowering, evoking the full moon. It is a hybrid variety combining robustness and good plant performance with longevity and intensity of flowering, plus  the vigour and decorative aspect of the foliage. In May-June beautiful single flowers appear, creamy yellow, marked with a slight red smudge, with a heart filled with golden yellow stamens. It will enhance your garden in spring. Itoh peonies thrive in any loose, rather moist soil, in not too scorching sun.
Flower size
19 cm
Height at maturity
90 cm
Spread at maturity
1 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time October to November
Recommended planting time February to May, September to November
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Description

The Viking Full Moon Itoh Peony (Paeonia itoh) is an intersectional peony, recognised and sought after for its incredibly bright yellow flowering, evoking the full moon. It is a hybrid variety that combines the qualities of a tree peony and an herbaceous peony: overall plant robustness and good performance, longevity and intensity of the flowering, and the vigour and decorative aspect of the foliage. Dominating intense green foliage, the blooms rise on rigid stems, giving the flowering a lot of grace and a beautiful vase life.  

This Viking Full Moon peony belongs to the family of Ranunculaceae or Paeoniaceae. There are three main groups of peonies: herbaceous peonies, which are perennial by virtue of their roots, forming a clump of foliage that disappears completely in winter ; tree peonies (Paeonia suffruticosa) with woody trunks that can reach 2m (7ft) in height ; and Itoh peonies, known as intersectional peonies, which are the result of a cross between a tree peony and an herbaceous peony. Itoh peonies are the result of work carried out by the Tokyo-based breeder Toichi Itoh, starting in 1948, who bequeathed his name to them. These plants are exceptional perennials that bring together the qualities of herbaceous and tree species, combining the vigour of the former with the splendour of the latter, in terms of both foliage and flowering.

The Viking Full Moon variety was bred by Roy Pehrson (United States). After his death it was registered with the American Peony Society by William Seidl, in 1989.  The plant forms a herbaceous, compact and bushy clump from spring onwards, which can reach 90 cm (35in) in height with a spread of 100 cm (39in). Its growth is rather slow, but still faster than that of tree peonies. The plant develops large compound leaves with dark green and pointed leaflets that resemble those of tree peonies. Flowering takes place in early May in southern regions, a little later in cooler climates, abundant and lasting for three weeks. Leafy, semi-rigid, very firm stems appear, bearing large buds at their tips that open into large solitary, single flowers, 18 to 20 cm (7 to 8in) in diameter. They are composed of about 10 wide cream-yellow petals, arranged in two rows, marked by a slight red smudge, enclosing a heart filled with golden yellow stamens. The above-ground vegetation disappears completely in winter, persisting in the form of buds located at the surface of the soil. It regrows in March-April. It is a long-lived perennial plant.

Opulent and generous, slightly fragrant, the Viking Full Moon hybrid peony can be planted in beds or alongside pathways, associated with timeless perennials such as Irises, columbines, bellflowers, perennial geraniums, carnations, Christmas roses, or in combination with shrubs or roses in a border. It can also be grown in the vegetable garden to supply cut flowers for the house. Pot cultivation is not recommended, as its needs will not be met. Popular, appreciated for its many advantages, the peony finds its rightful place both in the garden and in the making of bouquets or floral arrangements. With a wide range of varieties, it is easy to find the one that best suits your taste.

Paeonia Itoh Viking Full Moon in pictures

Paeonia Itoh Viking Full Moon (Flowering) Flowering
Paeonia Itoh Viking Full Moon (Plant habit) Plant habit

Flowering

Flower colour yellow
Flowering time May to June
Inflorescence Solitary
Flower size 19 cm
Fragrance slightly scented
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 90 cm
Spread at maturity 1 m
Growth rate slow

Botanical data

Genus

Paeonia

Species

x Itoh

Cultivar

Viking Full Moon

Family

Ranunculaceae

Other common names

Itoh Peony, Intersectional Peony

Origin

Cultivar or hybrid

Product reference1750101

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Planting and care

The Itoh Peony Viking Full Moon should be planted from mid-September to April, with a spacing of 80 cm (32in), in a fertile, deep, loose, humus-rich, moist, and well-drained soil. Choose a sunny but not scorching site, preferably in partial shade in hotter southern areas. Herbaceous peonies should not be buried more than 3 cm (1in) deep, otherwise they will take several years to bloom again. Avoid permanent mulching as it can cause diseases, and apply rose fertiliser or compost in March.

Watering: this plant needs water particularly before and after flowering. In case of intense and prolonged drought, watering every 10 days will be sufficient (20 litres per plant).

Divide old clumps in autumn only if the plant becomes overcrowded. Be careful, as it has delicate roots and dislikes being moved; following this operation it may not flower for several years. Cut the foliage down to ground level between February and April or October and November. Consider providing a support stake for the flower stems.

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Planting period

Best planting time October to November
Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Edge of border, Free-standing
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, rich, fertile, well-drained

Care

Pruning instructions Between February and April or October and November, cut the foliage down to the ground. As flowering progresses, remove the faded blooms.
Pruning Pruning recommended once a year
Pruning time February to March, October to November
Disease resistance Good
Overwinter Can be left in the ground
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