Garden Treasure - Itoh Peony
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One of the first Itoh peony varieties released (1984), Garden Treasure is a recipient of an American Peony Society gold medal. Semi-double buttery flowers with the striking red flares (early).
Also called intersectional peonies, these are a cross between herbaceous and tree peonies. They display huge blooms, tree peony foliage, more vigorous growth than either type and lots of flowers over a longer period. The autumn colours are stunning. For best results, sunny position, pH 6.5 and a few good frosts.
Aspect: Full sun to semi shade
Growing Zones: Zones 1, 2, 3 (refer to Climate Map)
Product Type: Peonies - Itohs
Product code: GT1
Scientific Name: paeonia hybrida
Supplied as: Rootstock packed in peat
Water Wise: No
Planting Time: Jun;Jul;Aug
End Use: Garden;Cut Flower;Clumping
Frost Hardy: Yes
Itoh/Intersectional Peony: (Zones 1,2,3)
They grow much like a herbaceous peony, however they might not always die back all the way to the ground. pH 6.5. Follow herbaceous instructions (below). Strong and vigorous, lots of flowers after a few years.
Herbaceous peonies come in a variety of forms, singles, doubles and semi-doubles and are often quite fragrant. These lovely shrubs can grow to around 1 metre high and will normally take a few years to establish and flower well. They grow from buds on a tuberous root and should be planted on arrival. Blood and bone or compost can also be mixed with the soil at planting. They will benefit from a soil pH which is neutral (7.0) or at the most, only slightly acidic. Plant in a full sun to half shade location with the top of the shoots maximum 5cm deep and approx. 1 metre apart. Peonies are very hard to grow if you don't have a cold winter. Plant in cold exposed locations with no winter mulch. If the peony is struggling to get established in it's first year you can break off the buds to put more energy pack into the plant. Peonies are frost tolerant and are heavy feeders and best results will come with some care. General purpose fertiliser should be applied during early spring and late autumn. Peonies don't like to be disturbed, but during their dormant months (winter) you can lift and divide a large matt of roots. Keep moist and cool after lifting. To prevent botrytis returning year on year cut stems back in autumn to 10cm above the ground. Cut back before leaves drop to ground to prevent botrytis entering the crown. They like regular watering during summer. Peonies can grow in pots but it is more difficult, they need winter cooling and heavy fertilisation to make them flourish.