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#1
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Tree-Heathers: ALSO shallow-rooted?
Hi.
Many of you very kindly assisted us some time back with suggestions of shallow-rooted evergreens for the 12" of soil that covers our septic-tank drainfield. Some people suggested heathers. Well, the whole area has now been planted with heathers, some herbs, and lots of alpines and with all the rain we've been having it's coming along fine. But a visitor this last weekend has suggested that to give the area more vertical interest, i.e. some plants of height (every species we've planted being rather low or flattish) we put in a few tree-heathers here and there. So I have googled tree-heathers and it seems this may be an excellent idea. However, I see that some of them, delightfully, can reach 3 metres in height! So, bearing in mind, that every plant on this drainfield MUST be SHALLOW-ROOTED, can anyone with direct hands-on experience of tree heathers assure us that tree heathers, like ordinary heathers, ARE also shallow-rooted? We can't afford to have roots that seek to penetrate deeper than 12 inches because they'll penetrate the plastic sheath over the rock bed and block up the drainage system. Some of the tree heathers I've been able to find via Google a Australis. Tree like shrub reaching 2mt evergreen with pinkish white flowers April to May, requires a sheltered position. Size Lusitanica. The largest of Tree Heather`s 3mt upright and bushy, feathery bright green foliage, white tubular flowers pink in bud December to February. Size Lusitanica George Hunt. Tree Heather of up to 3mt, evergreen golden foliage, requiring a sheltered position. Arborea Alpina. Tree Heather with young bright vivid green foliage, reaching up to 1.2mt, long stiff spikes of fragrant white flowers January to March. Arborea Estrella Gold. Tree Heather with young bright yellow foliage, reaching 1mt in Size, white fragrant flowers February to March. Size Thanks, Eddy. |
#2
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Tree-Heathers: ALSO shallow-rooted?
There's no problem with any of the tree heathers you mention. They
all form root mats that do not penetrate down very far and most importantly, are incapable of pushing through relatively thin plastic barriers. The same is true of the Azalea section of Rhododendron (both evergreen and deciduous forms) and most dwarf Rhododendrons. Andromedas and Pieris are also similarly rooted and work well with heathers. |
#3
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Tree-Heathers: ALSO shallow-rooted?
DaveP wrote:
There's no problem with any of the tree heathers you mention. They all form root mats that do not penetrate down very far and most importantly, are incapable of pushing through relatively thin plastic barriers. The same is true of the Azalea section of Rhododendron (both evergreen and deciduous forms) and most dwarf Rhododendrons. Andromedas and Pieris are also similarly rooted and work well with heathers. Thanks very much, Dave, for the assuracne re. the tree-heathers. And thanks very much too for mentioning Andromedas and Pieris. I knew about rhodis and azaleas and have a couple of them in already. Cheers, Eddy. |
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