Although Chives are native, they are rarely found in the wide. They are generally confined to rocky calcareous grassland in SW of British Isles. This makes them ideal as a green roof plant. Many plants that flourish on cliffs and calcareous grassland are suited to being used on green roofs, whether they be biodiverse systems of standard off the shelf solutions.
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Chives is well-used culinary plant and is relatively common on green roofs throughout Europe. It can grow on relatively thin systems, generally holding out in areas near outlets where moisture is at a premium.
The purple flowers are a beautiful addition ot a green roof scheme are are an important nectar source for bees. The pungently garlic aroma also provides an additional olfactory benefit. They can also be planted in clumps or in arrangements to provide some ‘visual’ design interest.
Chives are must on a green roof on all counts