The Garden Community for Garden Lovers

United Kingdom Gb

Another wisteria question here!

Had a grafted wisteria for about 3-4 years now from Thompson and Morgan via QVC.

My problem is that it's never flowered. Just produces leaves. It's been repotted into a larger pot and when I did move it, it had not created many roots at all. It's planted in good compost. It has never produced any of the wispy bits that you need to prune, so I've never pruned it. It doesn't ever seem to get any bigger. Just each year have more leaves.

Any advice please will be much appreciated.
Thank you

Imag2088 Imag2090 Imag2089



It needs to be in the ground, in rich, well-drained soil in a sunny position and keep it well-watered.
You an expect it to be 4-5 years old before it flowers.
That pot is way too small to accommodate a climber that will want to grow to 30+ ft tall.

22 May, 2015


Hi, welcome to GoY, I agree with Urbanite, but bear in mind that it is from t&m, as far as I'm concerned the most expensive, rubbish plants you can buy, Derek.

22 May, 2015


Thank you Urbanite and Derek for your replies. The plan was to train out into a tree and then just keep giving it bigger pots. My main concern is that the wispy bits have never developed on it, the plant has never increased in size. Just produces more leaves. It was a bare root plant and once planted laid dormant for about 5-6 months. Could it be a dud plant?

22 May, 2015


As Urbanite has already said it isn't going to do anything in that pot. Get it into the ground and remember it will need something to climb up.

22 May, 2015


And mine doesn't look like a vine, it's never produced any vine like growth. Just leaves and Bush like.

22 May, 2015


Yes poor thing shouldn't be in a pot, that's why you haven't got any vine like growth.

22 May, 2015


Okay thanks, I'll figure out where to put it in the ground.

22 May, 2015


Rebecca do be aware that that the wisteria will grow very, very big and need something serious to support doesn't grow on up without something to climb against.

22 May, 2015


Okay thank you, I'll figure something out.

22 May, 2015


Take a look at the T&I'm web page which will help you. The one thing not mentioned is the size of the planting hole which needs to be 2-3 times wider than the rootball and at least 1 1/2 times as deep. If you have a heavy clay soil you need to dig deeper and wider to avoid creating a sump around the roots where water will collect.

You need to plant the wisteria at the same depth as it was originally (if you can remember? Did you add any soil/compost to the top of the pot after planting? If so, you will need to remove that)

Part fill the hole with good organic material mixed with gravel (to give good drainage). Plant the wisteria to the right depth and backfill with good organic material.

keep it well-watered July-September (but don't let it get waterlogged) when next year's flowers are formed. But be patient it may still take several years for it to flower.

And, as Moongrower says, it needs something to climb up. - which is best sorted out before the wisteria starts growing.

23 May, 2015


Thanks urbanite. It was a bare root plant, so I don't know the soil level. Any ideas?

25 May, 2015


Look for the graft - it shouldn't be buried.

25 May, 2015

How do I say thanks?

Answer question


Not found an answer?