Hi Eskota, Pruning sealer is something that Gator and I disagree on. As has been mentioned, Linda Chalker-Scott is not the end-all authority for horticulture, but at least her conclusions are scientifically based. Below is a link of what she has to say regarding pruning sealer. I do think Bug Juice could have a small slight residual benefit if you are concerned about borers colonizing a pruning wound. Not that there is anything particularly special about Bug Juice (i.e. Deltamethrin) vs. other pyrethroids, but any broad spectrum insecticide will tend to slow borers down. I think there could be some advantage to treating large wounds with a strong copper solution. The reason is that large wounds can take many years to heal over. If the wound is large enough the wood in the center of wound can rot before the wound calluses over completely. If that happens, it will leave a hole that could trap water in the hole and slow callusing even more. Copper is decidedly different than asphalt or caulk type products that are routinely sold for wound dressings. Copper will not seal in moisture. I will also point out that my comments regarding copper are not based upon scientific testing. They are based only on deduction and some experience. Deductively, copper has fairly good broad spectrum fungicide activity. Copper is also one of the preservatives of treated lumber. And again copper will not seal in moisture as other wound dressings can. I first learned of this idea from an arborist who posted on a different forum. He claimed to have used this treatment with good success. My experience is also anecdotal. I've tried it on one very large wound. I treated the wound a couple times in the last three years and haven't seen any rotting of the core wood yet. The wound continues to close up. It was probably the largest wound I've made (about 6"). I've made several smaller wounds 4" or less and haven't put any copper on them and they've healed up themselves. I do try to spray big wounds when I spray the fruit for insects and disease. Generally I have an insecticide and fungicide in the tank mix, so the wounds get attention of a sort. I try not to let unwanted limbs get so far ahead of me that I have to use a chain saw. I'm getting better and for the last few years I've only made large wounds where I let central leader trees (like pears) get too tall and am bringing them down slowly. Here is a link that might be useful: Linda Scott - Wound dressings

I JUST PURCHASED ONE OF THESE BEAUTIES FROM MY LOCAL NURSERY. FORTUNATELY THEY HAVE A PROFESSIONAL WORKING THERE, (they have a weekly radio program on gardening & have written several books), AND I GOT QUITE AN EDUCATION. THE REALLY COOL PART IS THAT THEY HAVE BOTH TYPES GROWING NEXT TO A DRIVEWAY AROUND THE NURSERY. THE ASIAN WAS OUT OF CONTROL TO SAY THE LEAST. IT HAD TAKEN OCER TELEPHONE POLS, TREES, POWER LINES. I AM NOT SURE THERE WEREN'T A COUPLE OF PEOPLE AND PETS IN THAT MESS! THE AMETHYST FALLS AMERICAN WISTERIA WAS QUITE CONTROLABLE AND LOOKED QUITE NICE, LESS THAT ONE THIRD THE SIZE AND THE SAME AGE. THEY TOLD ME TO EXPECT IT TO BLOOM FROM LATE SPRING REPEATEDLY UNTIL FALL. IT WAS HOT( FOR HERE) ABOUT 80 DEGREES AND I FOUND NO PEE SMELL, AND AFTER THE EARLIER POSTINGS I STUCK MY FACE RIGHT IN IT. I PLANTED IT IN THE MIDDLE OF AN ARBOR ABOUT 6 FEET WIDE AND TALL. I WAS TOLD THAT WITH MINIMAL ANNUAL TRIMMING, (LATE WINTER), IT SHOULD BE QUITE HAPPY THERE FOR THE REST OF MY LIFE. AFTER THAT I DON'T REALLY CARE). I HAVE PUT BIRD FEEDERS INCLUDING HUMMING BIRD, ON AND AROUND THE ARBOR, AND SO FAR EVERYBODY SEEMS HAPPY. I WAS WARNED TO WATER IT REGULARLY TO KEEP IT MOIST, ESPECIALLY THE FIRST YEAR SO THE ROOTS BECOME WELL ESTABLISHED AND TO FEED IT WEEKLY THE FIRST YEAR THEN MONTHLY DURING THE GROWING SEASON AFTER THAT. SO FAR, SO GOOD, BUT MY NEIGHBORS CAT IS VERY INTERESTED IN IT ALL. I AM GETTING MY AIR HORN OUT FOR THAT ISSUE. ANY OTHER SUGGESTIONS OR WAS I GIVEN BAD INFORMATION?

search the forum- there was a thread this spring about amethyst falls. i ripped out some of the chinese stuff myself last yr after seeing the light as to how invasive it is. mine hadn't bloomed either, and had been in the ground several yrs. from what i've read, that isn't unusual for seed grown wisteria. i bought an am falls last yr, couldn't decide where i wanted it, and it bloomed in the pot again this spring- in the shade even.

With wisteria being considered a hardy vine...even with the noninvasive one...I would imagine it wouldn't kill itself out. I have a trained tree form I am planning on propagating. I believe the one site I went to said 3-4 foot spacing is the rule. So...I feel you should be fine.