Oxalis — 25 species
Botanical species in the genus Oxalis recorded in the PlantPeers database.
Oxalis acetosella
Oxalis acetosella
Family: Oxalidaceae
Cultivation
Oxalis acetosella is a very cold-hardy plant, able to tolerate temperatures down to about -25°c when fully dormant. Prefers moist shady conditions and a humus rich soil in shade or dappled sunlight. Dislikes very heavy and wet soils.
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Oxalis articulata
Oxalis articulata
Family: Oxalidaceae
Cultivation
Oxalis articulata is native to the warm temperate and subtropical regions of southern S. America. It is not very cold tolerant, being able to survive temperatures down to around -5°c or perhaps a bit lower if the soil is very well-drained.
Full cultivation guide →Oxalis bifida
Oxalis bifida
Family: Oxalidaceae
Cultivation
This species is not very cold hardy in Britain, though it might succeed outdoors in the milder areas of the country. Easily grown in a sandy soil in a warm dry position.
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Oxalis corniculata
Oxalis corniculata
Family: Oxalidaceae
Cultivation
A very easily grown plant, succeeding in a sandy soil in a warm dry position. It prefers dry open habitats. The plant flowers and fruits all year round.
Full cultivation guide →Oxalis cytisoides
Oxalis cytisoides
Family: Oxalidaceae
Cultivation
Oxalis cytisoides is found in a range of climates from the subtropics of southern Brazil to the tropical rainforests.
Full cultivation guide →Oxalis debilis
Oxalis debilis
Family: Oxalidaceae
Cultivation
Oxalis debilis is not very cold-hardy, with one report listing it as succeeding in climatic zone 9 and higher, thus only tolerating occasional light frosts. However, it is naturalized in parts of Britain, especially near London, and so should prove hardy to at least zone 8. It is growing well in our Cornwall site, where it has proved to be hardy for more than 20 years.
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Oxalis deppei
Oxalis deppei
Family: Oxalidaceae
Cultivation
Oxalis deppei is only hardy outdoors in the milder areas of the temperate zone, tolerating temperatures down to about -5°c or perhaps a bit lower if the soil is very well-drained. The bulbs are easily harvested in late autumn, however, and can be stored overwinter in a cool frost free place, replanting them in the spring. In milder winter areas a good mulch is usually sufficient to see the bulbs through the winter and they will then normally be more productive of leaves and flowers in the following year.
Full cultivation guide →Oxalis enneaphylla
Oxalis enneaphylla
Family: Oxalidaceae
Cultivation
Easily grown in a well-drained humus rich sandy soil in a warm dry sunny position. Requires a sheltered position. A very ornamental plant, it does well in the rock garden.
Full cultivation guide →Oxalis exilis
Oxalis exilis
Family: Oxalidaceae
Cultivation
A very easily grown plant, succeeding in a sandy soil in a warm dry position. It prefers dry open habitats. Spreading rapidly by seed and underground bulbils, this species can quickly become a nuisance, it is a common weed of pot plants in nurseries.
Full cultivation guide →Oxalis lasiandra
Oxalis lasiandra
Family: Oxalidaceae
Cultivation
Oxalis lasiandra is often listed as only being hardy to zone 9 (able to tolerate short periods with temperatures falling to around -4°c. We have grown it for a number of years at our site in southwest England (hardyness zone 8) and have heard reportd from other growers in zone 7 who have never had problems with it surviving the winter.
Full cultivation guide →Oxalis latifolia
Oxalis latifolia
Family: Oxalidaceae
Cultivation
Oxalis latifolia is a plant of the humid tropics, especially at higher elevations (up to 3,000 metres in Colombia), and also of the subtropics; it has also spread as a weed into warmer areas of the temperate zone.
Full cultivation guide →Oxalis magellanica
Oxalis magellanica
Family: Oxalidaceae
Cultivation
Easily grown in a sandy soil in a warm dry position in sun or light shade. Succeeds in the well-drained interstices of paving stones. Plants can become a pest in the garden.
Full cultivation guide →Oxalis montana
Oxalis montana
Family: Oxalidaceae
Cultivation
The plant is likely to prefer a semi-shaded position in a moist light well-drained soil.
Full cultivation guide →Oxalis oregana
Oxalis oregana
Family: Oxalidaceae
Cultivation
Easily grown in a moisture-retentive humus-rich soil in shade or dappled sunlight. Succeeds in dense shade. Grows well in a wild or woodland garden.
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Oxalis pes-caprae
Oxalis pes-caprae
Family: Oxalidaceae
Cultivation
Oxalis pes-caprae is not very cold-hardy, able to tolerate temperatures down to about -5°c. It grows very well in Mediterranean climates, also succeeding in other regions of the temperate zone with mild winters. Easily grown in a sandy soil in a warm dry position.
Full cultivation guide →Oxalis rosea
Oxalis rosea
Family: Oxalidaceae
Cultivation
Oxalis rosea is a plant of the warm temperate to subtropical regions of Chile, tolerating only occasional light frosts. It grows in areas with year-round rain and also areas with a dry period of up to 3 - 5 months. Mean annual rainfall is in the range of 400 - 800mm, concentrated in the winter months.
Full cultivation guide →Oxalis stricta
Oxalis stricta
Family: Oxalidaceae
Cultivation
Easily grown in a sandy soil in a warm dry position. Very closely related to Oxalis corniculata, and seen as no more than a variety of that species by some botanists. This species differs from Oxalis corniculata by stems erect, not rooting at nodes; branched or not.
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Oxalis tetraphylla
Oxalis tetraphylla
Family: Oxalidaceae
Cultivation
Oxalis tetraphylla is not very cold-hardy, tolerating short periods with temperatures falling to between -5 and -10°c. A very easily grown plant, preferring a sandy soil in a warm dry position. Our plants have proved to be very tolerant of neglect, succeeding for a number of years even in the dense growth of grass weeds.
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Oxalis triangularis
Oxalis triangularis
Family: Oxalidaceae
Cultivation
Oxalis triangularis is not very cold-hardy in the temperate zone, tolerating temperatures down to about -3°c. The plant has survived outdoors on our Cornwall site (hardiness zone 8) for several years in a well-drained, moderately heavy soil and a sunny position. It should be possible to grow the plant outdoors even in somewhat colder areas by digging up the roots in the autumn after the top growth has been cut down by frosts, storing them in a cool but frost-free place and replanting them in mid to late spring.
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Oxalis tuberosa
Oxalis tuberosa
Family: Oxalidaceae
Cultivation
A plant of higher elevations in the tropics, where it is found at elevations from 2,800 - 4,200 metres. It can be grown down to sea level in the subtropics and can also be grown in some parts of the temperate zone - its main limitation is that it requires a daylength of less than 12 hours before it starts to develop tubers. It grows best in areas where annual daytime temperatures are within the range 12 - 24°c, but can tolerate 5 - 28°c.
Full cultivation guide →Oxalis valdiviensis
Oxalis valdiviensis
Family: Oxalidaceae
Cultivation
Oxalis valdiviensis is not a very cold-hardy species, being able to tolerate short periods where temperatures fall to around -5°c when it is dormant. It is not very tolerant of snow. Found wild in Chile in regions where the mean annual rainfall is around 400 - 800mm, with most of it falling in the cool season.
Full cultivation guide →Oxalis violacea
Oxalis violacea
Family: Oxalidaceae
Cultivation
Easily grown in a moisture-retentive humus-rich soil in shade or dappled sunlight. Succeeds in dry soils. Grows well in a wild or woodland garden.
Full cultivation guide →