Foliage Effect

106 Products

  • £12.99

    A new Knoll Gardens selection for autumn 2023. Produces masses of airy pink red flowers supported by generally upright stems and green foliage that develops many shades of wine red and purple as the season progresses. Best in sunny open positions with soil that is not too winter wet. Height 1.2m – 1.5m.

    Panicum Merlot, like many a fine wine of the same name, has been some years in the making. For more than a decade Knoll has been trialling seedling selections of the prairie switch grass, Panicum virgatum, with the aim of producing a selection that will not only perform well in the variable UK climate, but which would also offer reliable red toned foliage as well as flower. Following the last few years of final evaluation we are delighted to offer Panicum Merlot to UK gardeners.

     

  • £12.99

    An invaluable upright selection having a very distinctive narrow vertical habit and wide greyish green foliage that turns yellowy orange in autumn. Later flowering. Superb vertical accent. Sunny open spot. Soil not too wet. Height; 1.5m – 1.8m.

  • £8.55

    An invaluable upright selection having a very distinctive narrow vertical habit and wide greyish green foliage that turns yellowy orange in autumn. Later flowering. Superb vertical accent. Sunny open spot. Soil not too wet. Height; 1.5m – 1.8m.

  • Out of Stock
    £7.99

    A very blue ish leaved selection of switch grass forming clumps of striking lax steely blue stems and foliage topped with delicate airy flowerheads. Needs sunny open spot for best effect. Soil not too wet, and is less lax in dry soils. Height; 90cm – 1.2m.

  • £12.55

    Lovely form of red switch grass grown specially for its large panicles of conspicuous red spikelets. Sunny open spot. Height 1.2m-1.5m. Deciduous.

  • £12.99

    Sea Mist is a recent Knoll Gardens selection from Panicum amarum, and forms clumps of fairly upright blue grey to sea green leaves that is topped with light coloured spikes of arching flowers in later summer. Foliage can offer subtle tones of autumnal yellow and orange. Best in sunny open positions with a soil that is not too winter wet. Height; 1.2m – 1.5m.

  • £12.55

    An upright habit, masses of tiny cloud like flowers, and foliage that produces dark red to wine shades by late summer make this one of the best for red toned foliage colour. Sunny spot. Soil not too wet. Height; 90cm – 1.2m.

  • £8.55

    An upright habit, masses of tiny cloud like flowers, and foliage that produces dark red to wine shades by late summer make this one of the best for red toned foliage colour. Sunny spot. Soil not too wet. Height; 90cm – 1.2m.

  • £12.55

    A long established selection forming relatively lax mounds of green foliage topped by masses of tiny purple flowers in summer. Can offer myriad autumnal shades of red, orange & yellow. Similar to Warrior. Sunny open spot. Soil not too wet. Height; 1.2m – 1.5m.

  • £12.55

    Great recent selection having a nicely upright habit with blueish grey green foliage topped with masses of tiny purplish spikelets during high summer. Sunny open spot. Soil not too wet. Height; 1.2m – 1.5m. Deciduous

  • £8.55

    A rather lovely selection having a strongly upright habit and greenish grey to steely blue foliage that is topped with masses of tiny flowers produced in later summer. Sunny open position. Soil not too wet. Height; 1.8m – 2m.

  • £12.55

    A long established selection forming relatively lax mounds of green foliage topped by masses of tiny purple flowers in summer and myriad shades of red, orange & yellow in autumn. Similar to Squaw. Sunny open position. Soil not too wet. Height; 1.2m – 1.5m.