
trefle.io · Taken May 23, 2018 by Pep Secem (cc-by-sa)
Boraginaceae
Common gromwell
Lithospermum officinale
Also known as Stoneseed, Pearl gromwell, Gray gromwell, Lithospermum ochroleucum
Native Plants · Edibles & Herbs · Medicinal Herb · Wildflower · Pollinator Plant · Woodland Garden · Native Plant · Perennial Herb · Boraginaceae · White Flowers · Heritage Plant · Low Maintenance
Common gromwell is a hardy perennial herb that grows well in average, well-drained soils in sun to partial shade with very little intervention needed. Water periodically during dry spells but avoid consistently wet conditions, as it is tolerant of moderate drought once established. It has a long history of medicinal use and produces small white flowers that attract pollinators in early summer.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply but infrequently; allow soil to dry partially between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7.5–8
- Temperature
- -20°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-10b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Albania, Altay, Argentina South, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, China North-Central, Colombia, Connecticut, Corse, Czechoslovakia, Denmark, East European Russia, East Himalaya
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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