Hypericum perforatum / St John's Wort / Medicinal Herb / Seeds

(Code: EM_005)
£ 1.25
(20 Item(s) In Stock)
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Hypericum perforatum / St John's Wort / Medicinal Herb / Seeds

St Johnís Wort is a traditional medicinal herb.  It makes an interesting garden plant for herb and wildflower gardens and informal borders.  Plants have a strong upright habit, growing to a height of about 1m. They have golden yellow flowers, with black dots along the edges, in June to July/August.  The fresh flowers are harvested in June and July for traditional medicinal use.

St Johnís Wort grows best in sun to light shade and moist free-draining neutral to slightly acidic soils.   Plants are deciduous and die down in winter when they can be cut back. They start regrowing in spring.

Pack of approx 4000 seeds.  Growing from seed can be erratic, so sow more seeds than you need.  Sow the seeds directly into the ground in autumn or early spring, or sow indoors anytime.  Sowing instructions and a colour photo are printed on the packet.

Caution: Plantsare harmful if eaten.


See how your seeds are packed.


Hardiness Hardy deciduous perennial herb (RHS Hardiness H6)
Flowers June and July/August
Height 1-1.5m
Spread 0.5 - 1m
Conditions  Sun to light shade and moist well-drained neutral to acidic soil
Sow

Sow the seeds directly into the ground in autumn or early spring, rake over very lightly and seeds germinate in spring.  Or sow the seeds indoors anytime, and press the seeds gently into the surface of the compost.  Keep well lit (do not exclude light), keep at 15-20įC and germination takes 3-6 weeks, sometimes up to three months. 

Grow Cut back plants after flowering or in winter and they start re-growing again in the summer. Plants have spreading rhizomes and need to be controlled in places where they grow well.  Softwood cuttings can betaken in early summer.