Old Field Cinquefoil, Common cinquefoil
Potentilla simplex
Family: Rosaceae
What it is like
Potentilla simplex is a PERENNIAL growing to 0.1 m (0ft 4in) by 0.5 m (1ft 8in). See above for USDA hardiness. It is hardy to UK zone 3. It is in flower from June to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 0.1
Where it is found
Locally common in dry open woods, prairie hillsides, roadsides, old fields and waste places.
Eastern and Central N. America - Nova Scotia to North Carolina, Alabama, Minnesota and Missouri.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 0
Medicine
Rating: 1
The plant is mildly astringent and antiseptic. A decoction is used as a gargle for loose teeth and spongy gums. An infusion of the roots has been used in the treatment of dysentery.
Antiseptic: Preventing sepsis, decay or putrefaction, it destroys or arrests the growth of micro-organisms.
Astringent: Produces contraction in living tissue, reducing the flow of secretions and discharges of blood, mucus, diarrhoea etc.
Dysentery: Used in treating dysentery - an infection of the intestines that causes diarrhoea containing blood or mucus.
Other
Rating: 0
How it is grown
Easily grown in a well-drained loam, preferring a position in full sun but tolerating shade. Prefers an alkaline soil but tolerates a slightly acid soil. Plants grown in rich soils produce more foliage at the expense of flowering. Hardy to about -25°c. Members of this genus are rarely if ever troubled by browsing deer.
Propagating it: Seed - sow early spring or autumn in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division in spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.
Best place to grow: Woodland Garden Sunny Edge; Dappled Shade;
Habit: Perennial
Hardiness: 3-7
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist