Grower set to cap new Chelsea plant-winner production

The disparity between new commercial glasshouse plants and less widely available new varieties was highlighted at the RHS Chelsea Flower Show plant of the year awards, as Clematis chiisanensis ‘Amber’ won best plant – with 1,000 available this year, 5,000 in 2017 and then 20,000 in 2018.
Source: Garden1