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Post new topic   Reply to topic    Irish Gardeners Forum Home -> Shrubs in Ireland ... Hedging in Ireland

white hydrangea - which variety?


 
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digress
Rank attained: Hazel Tree
Rank attained: Hazel Tree


Joined: 08 Nov 2014
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Location: Leinster

PostPosted: Sat Nov 22, 2014 12:53 pm    Post subject: white hydrangea - which variety? Reply with quote

Hello
I'd like to plant some white hydrangeas by a driveway and was thinking of using Hydrangea Limelight. However, there are some suggestions that it tends to flop a bit. Can anyone advise how well it keeps its shape? and whether there are other white hydrangeas that can be recommended?
thank you.
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Greengage
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Joined: 09 Nov 2011
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PostPosted: Sat Nov 22, 2014 5:35 pm    Post subject: Reply with quote

Hydrangeas that bloom on only new season growth are the most prone to flopping, especially if they are cut to the ground each year.
Hydrangeas are classified according to whether they bloom in late summer on new growth, which is growth that developed since spring, or they bloom in early summer from buds formed on the previous season's growth. Hydrangeas that bloom on new growth include hydrangeas, such as the Hydrangea paniculata "Grandiflora". and Hydrangea arborescens "Annabelle". Hydrangeas that flower on old wood include bigleaf or mophead hydrangeas such as Hydrangea macrophylla) and Oakleaf hydrangeas (Hydrangea quercifolia),
Just because a hydrangea blooms on only new growth, it doesn't necessarily follow that it should be pruned to the ground each year ok you will get great flowering but at sometime the plant needs a rest and then you will only get weaker stems and poor flowering.When pruning remove the 3Ds dead, diseased and decaying wood also crossing branches making a stronger plant. To strengthen the base to support the flowerheads prune back to approx 18 inches above ground to strong outward facing buds.Cut back mophead and oakleaf hydrangeas in midsummer to late summer, and cut back the other hydrangeas in spring after all danger of frost has passed.
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