Was all set to buy a single rose stem from local garden centre, then happened upon one of these big rose bushes in a neighbour's garden. One doesn't turn into the other does it? You can't just buy a rose and hope it grows and turns into a bush, so do you have to buy a 'rose bush'? Pardon my ignorance, but I never saw any rose bushes in the garden centre so it didn't occur to me, they were all single rose plants, very nice but maybe a bit limited.