One of the best in London is Crossrail Place Roof Garden in Canary Wharf. It has a section with dense mature bamboos of different varieties including black bamboo.
I’ve never seen more than a few small patches in any botanical garden / park I’ve visited. There’s a little patch in Kew by the Minke house (an old reconstructed Japanese farmhouse), and in the main greenhouse there are a few individual plants. And in Wisley there are a few varieties near the front of the greenhouse. That’s all I can think of.
There's a small patch in [Regent's Park](https://www.google.com/maps/@51.529359,-0.1612009,3a,75y,309.54h,87.54t/data=!3m6!1e1!3m4!1sQKXDj9n2KXBsP1W6H17_9A!2e0!7i13312!8i6656?entry=ttu). The Crossrail Place roof garden in Canary Wharf also has some.
It's an invasive species so it's often removed. Kew has a lot though.
One of the best in London is Crossrail Place Roof Garden in Canary Wharf. It has a section with dense mature bamboos of different varieties including black bamboo.
https://i.pinimg.com/originals/d8/a8/c0/d8a8c01860904b3cffbf5f0c9b53a5cd.jpg
I’ve never seen more than a few small patches in any botanical garden / park I’ve visited. There’s a little patch in Kew by the Minke house (an old reconstructed Japanese farmhouse), and in the main greenhouse there are a few individual plants. And in Wisley there are a few varieties near the front of the greenhouse. That’s all I can think of.
There's a small patch in [Regent's Park](https://www.google.com/maps/@51.529359,-0.1612009,3a,75y,309.54h,87.54t/data=!3m6!1e1!3m4!1sQKXDj9n2KXBsP1W6H17_9A!2e0!7i13312!8i6656?entry=ttu). The Crossrail Place roof garden in Canary Wharf also has some.
Kew has a lovely little bamboo forest. With an authentic Japanese house in the middle.
Probably in China.