Green Roof Training » Admiral http://www.greenrooftraining.co.uk green roofs training, workshops and information Mon, 01 Aug 2011 12:52:34 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Green roof plant of the week – Common Knapweed http://www.greenrooftraining.co.uk/2010/07/green-roof-plant-of-the-week-common-knapweed/ http://www.greenrooftraining.co.uk/2010/07/green-roof-plant-of-the-week-common-knapweed/#comments Mon, 12 Jul 2010 21:52:03 +0000 DustyG http://www.greenrooftraining.co.uk/?p=385 Common Knapweed (Centaurea nigra) is a classic plant of rough grassland, dry meadows and road verges. This makes it ideal for planting on small scale large green roofs. It is also a great plant and is included in my species lists for brown roofs and biodiverse roofs.

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