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Wisteria not flowering.

friarsgarth1friarsgarth1 Posts: 2
in The potting shed
Hi all, spring is here and after what seems an very long winter we are looking forward to another great garden year. One of our issues is that we have two wisteria that are now 7 years old and have never flowered. The plants are in tubs (50cm X 40cm), they look healthy and growing well at around 4mtrs tall, the garden is South East facing. I am very patient but after 7 years we hope for some flowering. Any thoughts to encourage these lovely plants would be appreciated.

Posts

  • philippasmith2philippasmith2 Posts: 3,742
    Your containers sound very small.  Wisteria need to get their feet in decent ground to give you a good display.
    @Obelixx does Wisteria - hopefully she will see this and give you some advice :)
  • JennyJJennyJ Posts: 10,576
    I think they can also take quite a few years to get mature enough to flower. The RHS says up to 20 years https://www.rhs.org.uk/plants/wisteria/growing-guide so I guess it depends how old your plants were when you bought them, and whether they're grafted (in which case they should flower sooner).
    Have they been pruned at at all?
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • ObelixxObelixx Posts: 30,090
    I have inherited 2 large wisterias which are growing in the ground.   I bought another, white, in flower, and kept it in a 60 x 60cm pot for 3 years while we got some space organised for it to have a permanent home in the ground.  It was fed and watered regularly and grew but never flowered.

    It has been in the ground for 2 years now and flowered well last year despite the first set of blossoms being frosted.   i expect it to do even better this year.

    I think yours are probably hungry, may well get thirsty in hot spells and very much need to get their roots down deep so do try and get them in the ground.  If that's not possible, give them each a huge pot - at least double the size - with good, loam based John Innes no 3 type compost mixed with upto 1/3rd MPC.   

    Be aware that planting composts only contain nutrients for about 90 days so you need to top dress every spring and add some slow release fertiliser and then be prepared to give liquid feeds (rose or tomato or seaweed) to get them to flower.

    You will need strong supports to hold their growth and you also nee dto get the pruning right to encourage flowers - https://www.rhs.org.uk/plants/wisteria/pruning-guide 
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • JennyJJennyJ Posts: 10,576
    Obelixx said:
    ...I bought another, white, in flower,...
    That's the key. Then you know it's mature enough to flower, and any subsequent non-flowering is down to how it's planted, fed, watered and pruned.
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
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