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Created page with "thumb|right|''Polemonium caeruleum'' Polemonium caeruleum, known as Jacob's-ladder or Greek valerian, is..."
[[File:Jacob's Ladder or Greek valerian (Polemonium caeruleum).jpg|thumb|right|''Polemonium caeruleum'']]
Polemonium caeruleum, known as Jacob's-ladder or Greek valerian, is a hardy perennial flowering plant. The plant produces cup-shaped, lavender-coloured or white flowers. It is native to temperate regions of Europe.
== Description ==
The plant usually reaches a height from 45 to 60 centimeters (18 to 24 inches), but some occasionally will be taller than 90 centimeters (35 inches.) The spread of the plant is also 45 to 60 centimeters. It can grow in North American hardiness zone 2.
The plant normally prefers soil that is rich in moisture and lime and does not require as much sunlight as other plants. Depending on the conditions, it will need varying amounts of water in the summer.
== Uses ==
*The plant was first used as a medicinal herb in ancient Greece. The ancient Greeks used the root to treat dysentery, toothaches and animal bites.[Clarification needed]
*Today, the plant is usually used in potpourris and is boiled in olive oil to make black dyes and hair dressing, but it has few other significant uses.
*It was formerly used internally in the treatment of a wide range of conditions ranging from headaches to fevers and epilepsy<ref name="uses"/>
== References ==
<references>
<ref name="uses">[http://www.pfaf.org/USER/Plant.aspx?LatinName=Polemonium+caeruleum Plants for a future]</ref>
</references>
== External Links ==
*[https://en.wikipedia.org/wiki/Polemonium_caeruleum#cite_note-BSBI07-2 Polemonium caeruleum - Wikipedia]
[[Category:Herbs]]
Polemonium caeruleum, known as Jacob's-ladder or Greek valerian, is a hardy perennial flowering plant. The plant produces cup-shaped, lavender-coloured or white flowers. It is native to temperate regions of Europe.
== Description ==
The plant usually reaches a height from 45 to 60 centimeters (18 to 24 inches), but some occasionally will be taller than 90 centimeters (35 inches.) The spread of the plant is also 45 to 60 centimeters. It can grow in North American hardiness zone 2.
The plant normally prefers soil that is rich in moisture and lime and does not require as much sunlight as other plants. Depending on the conditions, it will need varying amounts of water in the summer.
== Uses ==
*The plant was first used as a medicinal herb in ancient Greece. The ancient Greeks used the root to treat dysentery, toothaches and animal bites.[Clarification needed]
*Today, the plant is usually used in potpourris and is boiled in olive oil to make black dyes and hair dressing, but it has few other significant uses.
*It was formerly used internally in the treatment of a wide range of conditions ranging from headaches to fevers and epilepsy<ref name="uses"/>
== References ==
<references>
<ref name="uses">[http://www.pfaf.org/USER/Plant.aspx?LatinName=Polemonium+caeruleum Plants for a future]</ref>
</references>
== External Links ==
*[https://en.wikipedia.org/wiki/Polemonium_caeruleum#cite_note-BSBI07-2 Polemonium caeruleum - Wikipedia]
[[Category:Herbs]]
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