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Green petal is the name given to the problem when Clematis flowers open to reveal green discolouration. This is most often seen on the first flush of flowers; and subsequent blooms are usually unaffected.
Common name Clematis green petalPlants affected Clematis, especially white- or pale-flowered clematisMain causes Especially, low temperatures at the time flower buds are initiatedTiming Spring
Clematis green petal is a transient disorder related to cold temperatures. The flowers are perfectly formed, unlike those affected by green flower disease, where blooms may be distorted and remain green throughout the growing season. Green flower disease is permanent and incurable.
On opening, clematis flowers show varying amounts of green – from a tinge of green along the centre line of the tepal (petal) to the entire bloom failing to colour. They are not distorted in any way.
If flowers are distorted, and they continue to bloom all season with the same symptoms, green flower disease may be responsible.
Several thing may give rise to green petal;
The need for control depends on the cause and persistence of the problem;
Bicoloured flowersClematisClematis: pruningClematis slime fluxClematis wiltFlower ballingMutations: flower proliferationPlant virusesPowdery mildews
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Ivanhoe on 06/04/2015
Note that Clematis viticella 'Alba Luxurians' has green or green-tipped petals and is not suffering from green petal disease!
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