Wildflowers UK, bringing the British Countryside to you.

Hairy St John’s Wort –Hypericum hirsutum – grows well on damp soils in semi-shade. In the wild, Hairy St John’s Wort grows along roadsides and river banks, and in open woodland. Plants typically grow to about 2 foot in height and produce bright yellow flowers in July and August. Hairy St John’s Wort looks best growing with other wildflowers that bloom in mid to mid late summer such as Common Agrimony, Greater Knapweed, White campion and Small Scabious.

How to grow Hairy St John’s Wort Seeds
Hairy St John’s Wort seeds should be sown in autumn, either outside, where they are to flower, or in seed trays and covered lightly with compost. The seedlings, can be pricked out and grown on, for planting out later in the year.

To buy Hairy St John’s Wort seeds
To purchase Hairy St John’s Wort seeds, please select a quantity above and click add to cart. To ensure the best chance of success, we sell all of our wildflower seeds by weight, which ensures each wildflower seed packet contains a good quantity of seeds. The recommended sowing rate is 1 gram per square metre, and the number of Hairy St John’s Wort seeds per gram is approx. 12000. All of our Wildflower seed packets contain seeds of Native British provenance.


Summary
type - perennial,
colour - Yellow,
height - 50 to 75cms,
flowering months - July, August,
habitat - Semi-Shade (Orchards, Hedgerow, Banks, Open Woodland), Moist Grassland (Clay, Loams),
Attracts Butterflies
TOXIC,