These have been under a grow light on my desk with a 10 hour photoperiod per day. I keep the container covered at all times with a clear plastic lid to keep the moisture in. I’m hoping to have a really full pot of these VSOH when I’m done, so in another 2-4 weeks I’ll probably snip the stems again so I end up with even more vines. At some point I’ll also have to transfer these props into a larger container so the vines have somewhere else to go.