
trefle.io · Taken Mar 19, 2022 by nicolas Francois (cc-by-sa)
Caryophyllaceae
Four-leaf allseed
Polycarpon tetraphyllum
Also known as Four-leaved allseed, Fourleaf manyseed, Polycarpon, Holosteum tetraphyllum
Native Plants · Ground Cover · Sandy Soil · Full Sun · Low Growing · Naturalistic · Gravel Garden · Weed · Caryophyllaceae · Drought Adapted · Annual
Four-leaf allseed is a delicate, low-growing annual or short-lived perennial that thrives in sunny, sandy, or disturbed soils with excellent drainage. It requires very little care — simply provide full sun and avoid overwatering, as it naturally colonizes dry, open ground. Best used in naturalistic plantings, gravel gardens, or as a green carpet in poor soils where other plants struggle.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water lightly; plant is adapted to dry, sandy soils and dislikes overwatering · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.5–6.5
- Temperature
- -20°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 5a-10b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 4 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Albania, Algeria, Argentina Northeast, Argentina Northwest, Ascension, Austria, Azores, Baleares, Belgium, Bolivia, Brazil North, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, California, Canary Is., Cape Provinces
- Attracts
- Bees
Sources: trefle, usda
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No nursery lists Four-leaf allseed right now.