Perhaps tomorrow I can put the island in the pond and plant it. Full Circle I have two flats of petunias ready for planting but I am saving your idea for later consideration.

Here is where the island stands now. The ropes for drawing up water into the medium are in as is the anchor rope. You can see the two cups for the experiments. The clear cup will allow the plant to only have it's roots in water and there is a foam insert in it that will hold the plant upright, while the red cup will allow the roots to be in the water and also to grow into the soil. The rest of the plants will just grow into soil moistened by the ropes.