Green-Flowered Wintergreen
Pyrola chlorantha

Family: Pyrolaceae

What it is like

Pyrola chlorantha is an evergreen Perennial growing to 0.3 m (1ft) by 0.3 m (1ft in). See above for USDA hardiness. It is hardy to UK zone 5. It is in leaf all year, in flower from June to July. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile. Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: mildly acid and neutral soils and can grow in very acid soils. It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade. It prefers moist soil.

Height (m): 0.3

Where it is found

Moist coniferous woods, 2000 - 3000 metres in Texas.

Western N. America - Labrador to British Columbia, south to Illinois, Nebraska and Arizona.

Conservation Status:

Countries/locations it is found in

How it is used

Food

Rating: 0

Medicine

Rating: 1

The plant is astringent. It has been used in the treatment of menorrhagia, diarrhoea and haemorrhages. It has also been used to treat bloody diarrhoea in children.

Astringent: Produces contraction in living tissue, reducing the flow of secretions and discharges of blood, mucus, diarrhoea etc.

Other

Rating:

How it is grown

Prefers a moist sandy woodland soil in a cool position with partial shade. Requires a peaty or leafy acid soil that remains moist in the summer. This is a very difficult plant to grow. It requires a mycorrhizal relationship in the soil and therefore needs to be grown initially in soil collected from around an established plant. It is also very difficult from seed as well as being intolerant of root disturbance which makes division difficult. This species is extremely rare and endangered in the wild.

Propagating it: Seed - the only information we have on this species is that it is difficult from seed and germinates infrequently. We would suggest sowing the seed as soon as it is ripe if this is possible. Sow it into soil collected from around an established plant, only just covering the seed, and put the pot in a shady part of a cold frame. Pot up any young seedlings as soon as they are large enough to handle, once again using soil from around an established plant. Plant out into their permanent positions when the plants are large enough. You should not need to use soil from around an established plant to do this since the soil in the pot will contain the necessary micorrhiza. Division with great care in the spring. Pot up the divisions using some soil from around an established plant, grow on in a lightly shaded part of a greenhouse or frame and do not plant out until the plants are growing away vigorously.

Best place to grow: Woodland Garden Dappled Shade; Shady Edge; not Deep Shade;

Habit: Perennial

Hardiness: 4-8

Growth:

Soil: Light (sandy), medium

Shade: Full shade, semi-shade, no shade

Moisture: Moist

Things to keep in mind

Its other names

Local names

Synonyms

P. virens. Schreb.