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Graham Rice's New Plants Blog

Graham Rice Garden writer and plantsman Northamptonshire and Pennsylvania

Editor-in-Chief of the RHS Encyclopedia of Perennials; writer for a wide range of newspapers and magazines including The Garden and The Plantsman; member of the RHS Herbaceous Plant Committee and Floral Trials Committee; author of many books on plants and gardens.

  • Date Joined: 18 Oct 2006

Plantagogo (Part One): New at Hampton Court ‘09

Posted by Graham Rice on 08 Jul 2009 at 04:13 PM

New heucheras from Plantagogo. Image: GardenPhotos.comHeucheras and related plants have become extraordinarily popular in recent years so that now there are two specialist exhibitors doing good business at The Hampton Court Palace Flower Show when a few years ago there were none.

Plantagogo decided only to include large, mature specimens on their exhibit. A Gold Medal at this year's show proves that this is a wise approach. But the result is that they often have new varieties to sell before they've grown to specimen size.

So they took me round the back, where all their sale plants are stored, to take a look at the eight new heucheras, two new heucherellas and one tiarella that they're selling at the Show but which are still a year away from making large enough specimens to go on the exhibit. Eight of the heucheras and heucherellas are in the picture. I'll be discussing them all over the next few days.

But let's start with the one that's not in the picture, Tiarella ‘Mystic Mist', illustrated below.

Tiarella 'Mystic Mist'. Image: GardenPhotos.comThis is a descendant of the first speckled tiarella, ‘Heronswood Mist, found in a tray of seedlings at the Heronswood Nursery in Washington State, USA, some years ago. ‘Mystic Mist', from Terra Nova Nurseries in Oregon (no retail sales), is more vigorous and has better colour.

The foliage is yellowish green with a distinctive red colouring to the central veins and a fine dusting of silver spots, becoming darker green in colour as the summer progresses. It's evergreen, so brings interesting colouring to the shade garden in winter, while in the autumn it develops a haze of pinkish tones. There are flowers too, clouds of foamy white flowers in spring.

More vigorous than other speckled tiarellas, it doesn't run widely as some tiarellas do but remains in a continuously expanding clump. It loves moist, humus-rich soil and good drainage in full or partial shade.

You can buy Tiarella ‘Mystic Mist' at the show or order it online from the Plantagogo website (scroll down).

Key to the picture:
Top row: Heucherella ‘Golden Zebra’, ‘Heuchera ‘Sugar Plum’
Second row: Heucheras: ‘Mysteria’, ‘Fire Chief’, ’Lime Marmalade’
Bottom row: Heucheras: ‘Milan’, ‘Electra’, ‘Berry Smoothie’
 

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