
I've found a couple of photos of the results after one year though
Here's the foil wrapped rock in the pot it has grown in for 12 months After un potting you can see that the roots have grown out the bottom of the foil wrap. Note that no roots have escaped laterally which is a common problem when trying to grow root over rock tridents using other methods.
After unwrapping you can see that the roots on the rock have been kept right up close to the surface of the rock. You can also see that there are lots of new roots that have developed during the growing season. And a closeup look at the main roots. I will try to get replacement photos into that article on the website
