DO NOT fertilize the tree. if it doesn't have leaves it doesn't need fertilizer. that would do more harm than good. only fertilize it when it's actually growing.

Thanks, Pinkham, good to know. Sorry for the slipup.

If this tree was planted in the ground and then dug up and potted it could be in shock....depending on when you potted it. If it was transplanted at the wrong time you may have done too much damage to it to survive.
the best thing to do with it is water it a little less than normal and keep it out of direct sunlight. when and if you see leaves starting to pop, increase the sunlight it gets and increase water accordingly.

The tree was put in the ground to grow a bit more directly from the nursery bag. The place where it was planted didn't get enough sunlight and that was about the same time when it started losing leafs. I then moved it to a sunnier spot and until now nothing has happend.

Will wait till september and hope it comes around. I will follow your guide and feed it lightly when the first leafs pop. I will post again when the leafs come out.

The first bud has started on the wisteria. So I am a very happy young man.
Can I start feeding spring time?

The first bud has started on the wisteria. So I am a very happy young man.
Can I start feeding spring time?

Yaaaayyyeee! Congratulations, Hein!

What a wonderful sight to see that one beautiful little bud sprouting, yes? Your patience has paid off.

I think it might be a bit early to start fertilizing it. How long has it been since you last dug it up and moved it? And, were the roots disturbed during the transplant and/or the move?

Anyone else?

I made a mistake there. It actually has 2 buds. The other one is hiding in at the back. No roots were disturbed during the transplant. As soon as the wisteria shows that its well again, I wanna pot it in more better soil without any pruning. And by next year I will start pruning.

I read on the web that its better to feed a wisteria with fert low in Nitrogen or even none. Apparently the wisteria takes nitrogen from the surrounding air. It sounds a bit weird so I just want to double check with you guys. Is there any truth in this? I can't remember where I saw this.

Hey Hein,
From what I read, if you fertilize the wisteria with nitrogen in it, the tree won't produce flowers, but it will produce leaves.If you want it to flower feed it
phosphorus. It seems that they are very hardy trees, and don't mind rough treatment. So, I guess trimming a little growth won't hurt it. I'd still hold off root pruning though.

Wsiteria is a legume. Legumes form a symbiotic relation with bacteria, which are capable of fixating Nitrogen. So indeed, Wisteria can 'fix nitrogen from the air' if the appropriate bacteria are present.