My best buy has to be the Lobelia Richardii, I obtained two plants and from that I have so far made 24 cuttings, it doesnt grow from seed so I have layered it.
The back two tubs show the original plants and how they trail, just pin them down round the edge and in no time they root.
These are very expensive from the garden centre (although I can see why, taking in all the work to pot them up) but having grown 2000 seeds of the ordinary lobelia in Feb, then pricking out in bunches, this seems the far better option.
You only need one cutting, not a bunch to make a good plant, it has much stronger stems and flowers' for longer as it doesnt produce seed.
Next to that, (apart from geraniums and fucshias) are the osteospernum, I have made dozens of cuttings from one plant.
Has anyone else had a super buy this year?