Gratiola officinalis

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Gratiola officinalis
Light:Full Sun Part Shade
Moisture:Mesic Hydric
Soil pH:5.6-8.4
Height:1'
Width:1'
Blooms:Early Summer-Late Summer
Native to:
Medicinal Rating:
Tea:Yes
Poisonous

Gratiola officinalis (common name: hedge hyssop)

Propagation: Seed - sow spring in a cold frame. Prick out the seedlings when they are large enough to handle and plant them out in the summer.

Division in spring[1]. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Cultivation: Prefers a rich moist alkaline soil in full sun[1][2][3]. Succeeds in pond margins[1].

Range: Central and southern Europe.

Habitat: Wet grassland, fens, river banks, ditches etc[4][5].

Medicinal: Hedge hyssop was once widely used as a medicinal herb but it is now considered to be obsolete because of its toxicity[3]. The root and the flowering herb are cardiac, diuretic, violently purgative and vermifuge[6][4][7]. The plant has been used in the treatment of liver problems, enlargement of the spleen, dropsy, jaundice, intestinal worms etc[6][3]. The plant is harvested whilst in flower in the summer and dried for later use[4][3]. Use with caution, in excess the plant causes abortion, kidney damage and bowel haemorrhage[3]. See also the notes above on toxicity.

A homeopathic remedy is made from the flowering plant[4]. It is used in the treatment of cystitis, colic and certain stomach disorders[4].

Soil: Can grow in light, medium, and heavy soils.

Flower Type: Hermaphrodite

Known Hazards: All parts of the plant are poisonous[4][8][2].

Links

References

  1. 1.0 1.1 1.2 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  2. 2.0 2.1 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  3. 3.0 3.1 3.2 3.3 3.4 Bown, Deni. Royal Horticultural Society Encyclopaedia of Herbs and Their Uses. Dorling Kindersley, 1995.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 Launert, Edmund. Edible and Medicinal Plants. Hamlyn, 1981.
  5. Tutin, Tom et al.. Flora Europaea. Cambridge University Press, 1964.
  6. 6.0 6.1 Grieve, Margaret. A Modern Herbal. Penguin, 1984.
  7. Lust, John. The Herb Book. Bantam Books, 1983.
  8. Frohne, Dietrich and Hans Pfänder. J. A Colour Atlas of Poisonous Plants. Timber Press, 1984.