Mertensia maritima
Common name: Oysterplant
-10 to -15°C
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A perennial herb which is found wild in isolated coastal areas around the UK and is native to the Northern Hemisphere. Mertensia maritima is a rare, exciting introduction to the garden which produces branched clusters of bright blue, bell-shaped flowers, opening from pink buds, in June and July. A pretty, ground covering plant which also has edible leaves, said to taste of oysters - hence the common name! Why not pick and munch or add to salads for some really unusual culinary flair. Plants will happily grow in containers, baskets or rockeries and need well-drained soil in either full sun or partial shade. Mertensia maritima is a hardy, herbaceous perennial which is suitable to most soils, from sandy to clay, and its attractive, glaucous foliage is held from March to October for up to 8 months of intriguing foliage interest. Matures to a height of 10cm with a spread of 50cm.
When To Plant
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Foliage Month
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Key Information
| Latin Name | Mertensia maritima YP |
|---|---|
| Common Name | Oysterplant |
| Hardiness | H5 (-10 to -15°C) |
| Colour | Blue |
| Format | Young Plants |
| Position | Full-Sun, Part-Shade, Part-Sun |
| Height in Maturity (m) | 0.10 |
| Spread in Maturity (m) | 0.50 |
| Soil Conditions | Clay Sand |
| Aspect | East-facing, West-facing |
| Drought Tolerant | Yes |
| Good for pots | Yes |
| Good for hanging baskets | Yes |
| Good for Rockeries | Yes |
| Good for groundcover | Yes |
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