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Trachelospermum jasminoides

My jasmine has put in loads of growth this year, but no flowers. How do I make flower? It looks really healthy, but not a single bud. Should I prune it to make it flower, if so when?
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Bear with it. I planted one in 2007, no flowers, 2008 no flowers, 2009 a few flowers - winter of 2010 practically killed off, but then a shoot came back. Next summer, no flowers, 2011 no flowers, 2012 no flowers, 2013 a few flowers, 2014 lots of flowers, and all this while putting on a lot of healthy looking leaf growth. Someone suggested to me that I should use potash fertilizer to encourage them, but I hadn't got around to it before the flowers formed, so I think patience is as much a factor as anything.
Grrrrrrrrrr...Mine didn't flower in four years and I pulled it out yesterday and consigned it to the garden bin. Maybe I ought to have had your patience Busy Bee 2. As an aside to this, on one of the Chelsea Flower Show snippets, there was a lady who did climbers and she had a magnificent Star Jasmine which had been trained up and over an arch. I was gutted when I saw how beautiful it was...and that it was implied they were easy to care for I think. Ugh...mine got the better of me that's for sure.
Like a few of the bigger climbers they sometimes need to know they're mature. A sunny spot helps, they definitely do much better when the growth's ripened off through a summer. Busy Bee, I'm impressed - that's patience in the extreme. Sally, bear with it - good new growth is a good sign. HC
I've had mine three years and it isn't flowering so will just keep hoping.There is plenty of new growth, so maybe next year.
I was going to buy one, may think again...or shove it in a pot out of the way for 4 or. 5 years Before I plant to where I want it!
This has been really helpful as I have exactly the same problem and thought I must be doing something wrong, especially as this was my first time with this plant.
My old plain green one flowered every year until it was so old and tatty I started again, still in pots. My new variegated one has not flowered in five years and now my gold one bought in flower last year has no flowers. I think the next generation might see them in flower but doubt I will make it by all comments.
Mine has never flowered, it's now right up the arch and over the top.
I read that they thrive in poor soil and not to feed them.
I have 2 and they flower every year, one is an old pink variety. I had to replace a fence panel one year so it had to be cut back drastically. It didn't flower last year but is plastered in flowers now. The other is the basic white variety which I planted about 3 years ago and it has flowered each year since it was planted. It was cut back last year. It has put on lots of new growth but all the flowers are on last year's growth non on this years.
My soil is very good loam which drains well and they are both in sunny spots.
No expert but maybe you are cutting it back too hard or at the wrong time, just a thought.