rockm
Spuds Moyogi
I honestly am curious if the soil it's planted it causes the scent. I have an American wisteria who many claim also smells musky/cat pee scent. But...have yet to smell it from my own tree. I don't discredit those who have smelled a poignant odor. But, curious if the chemical balance of the soil also plays a factor. Just my musings...which have nothing to hold a candle to in the wind.
I don't know if the soil composition has much to do with it. It has more to do with age, the mass of the plant and number of plants in a garden. Older Buxus Sempervirens with a lot of foliage, planted in dense allees will smell. Bonsai sempervirens can also smell, but it's not nearly as noticeable.
Same for wisteria. Old wisteria does have a very distinct odor --not talking about the flowers. Walk through a forest or plantation that has been overrun with the for decades and you will smell it. It's similar to the pee scent, but not exactly the same.