Alyssoides utriculata

26 May

Alyssoides utriculata (23/04/2016, Kew Gardens, London)

Alyssoides utriculata (23/04/2016, Kew Gardens, London)

Position: Full sun

Flowering period: Late Spring to early summer

Soil: Moist, well drained, sandy

Eventual Height: 25cm

Eventual Spread: 25cm

Hardiness: 6a, 6b, 7a, 7b, 8a, 8b, 9a

Family: Brassicaceae

Alyssoides utriculata is an evergreen perennial with a low growing mounded habit. Its mid green leaves are oblanceolate with entire margins, up to 5cm long and 8mm across. Its fragrant yellow flowers appear as a terminal raceme. Its fruit appear as spherical, bladder like, seed pods.

Alyssoides utriculata Flower (23/04/2016, Kew Gardens, London)

Alyssoides utriculata Flower (23/04/2016, Kew Gardens, London)

Alyssoides utriculata, commonly known as Bladder pod, is native to the mountainous regions of Europe, including the Alps and those of the Balkans. In its native habitat it grows in alpine regions on dry rocky slopes.

The etymological root of the binomial name Alyssoides is named after another genus of plant Alyssum and the epithet -oides meaning ‘resembling’. Utriculata is derived from the Latin utriculus meaning ‘wine skin’, in reference to the shape of the seed.

The landscape architect may find Alyssoides utriculata useful as a low growing, spring flowering plant suitable for rock gardens. Once established this plant is drought tollerant.

Alyssoides utriculata Leaf (23/04/2016, Kew Gardens, London)

Alyssoides utriculata Leaf (23/04/2016, Kew Gardens, London)

Ecologically,  Alyssoides utriculata flowers are attractive to pollinating insects.

Alyssoides utriculata prefers moist, sandy, well-drained soils. It tolerates most pH of soil.

Alyssoides utriculata requires little maintenance.

DAVIS Landscape Architecture

Landscape Architecture

Iris aphylla

24 May

Iris aphylla (23/04/2016, Kew Gardens, London)

Iris aphylla (23/04/2016, Kew Gardens, London)

Position: Full sun

Flowering period: Spring to early summer

Soil: Moist, well drained

Eventual Height: 30m

Eventual Spread: 30cm

Hardiness: 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b

Family: Iridaceae

Iris aphylla is a deciduous herbaceous perennial with a clump forming habit. Its  gray/ green  leaves are sickle shaped with entire margins, emerge from its rhizomes and are up to 40cm long and 3cm broad at their base. Its fragrant purple flowers are up to 7cm across, emerge from a 3-5 branched stem which emerges from the base of the leaf cluster and is up to 30cm tall. Its fruit is a loculicidal capsule. Its roots are rhizomes which allow this plant to steadily spread.

Iris aphylla Flower (23/04/2016, Kew Gardens, London)

Iris aphylla Flower (23/04/2016, Kew Gardens, London)

The Iris aphylla, commonly known as Leafless Iris, Table Iris or Stool Iris, is native to central and east Europe and Russia. In its native habitat it grows in grasslands, rock hillsides and scrubland.

The etymological root of the binomial name Iris is derived from the Greek word for a rainbow, referring to the wide variety of flower colours found among the many species. Aphylla is derived from the Greek epithet a- menaing ‘without’ and phyllon meaning ‘leaf’.

Iris aphylla Leaf (23/04/2016, Kew Gardens, London)

Iris aphylla Leaf (23/04/2016, Kew Gardens, London)

The landscape architect may find Iris aphylla useful as an effective spreading ground cover plant with attractive flowers.

Ecologically, Iris aphylla flowers are attractive to bees and pollinating insects.

Iris aphylla prefers moist, fertile, well-drained soils. It tolerates most pH of soil.

Iris aphylla requires little maintenance. Large clumps may be divided, this should be carried out up to six weeks after flowering.

DAVIS Landscape Architecture

Landscape Architecture

Cypripedium formosanum

23 May

Cypripedium formosanum (23/04/2016, Kew Gardens, London)

Cypripedium formosanum (23/04/2016, Kew Gardens, London)

Position: Part shade to shade

Flowering period: Spring

Soil: Moist, well drained

Eventual Height: 25cm

Eventual Spread: 30cm

Hardiness: 8a, 8b, 9a, 9b

Family: Orchidaceae

Subfamily: Cypripedioideae

Cypripedium formosanum is a deciduous bulbous orchid with a spreading habit. Its mid green leaves are flabellate, pleated with entire margins, up to 13cm long and 11cm across. Its white flowers have pink spots, are pendulous, appear terminally and up to 5cm long. Its roots contain stoloniferous rhizomes which aids its slow spread.

Cypripedium formosanum Flower (23/04/2016, Kew Gardens, London)

Cypripedium formosanum Flower (23/04/2016, Kew Gardens, London)

Cypripedium formosanum, commonly known as Formosan Lady’s Slippers or Beautiful Cypripedium, is native to Taiwan. In its native habitat it grows in mountain forests and bogs. Cypripedium formosanum is classified as Endangered according to The IUCN Red List of Threatened Species.

The etymological root of the binomial name Cypripedium is derived from the Greek Kypris, a name for Aphrodite and podilon meaning ‘slipper’.  Formosanum is derived from the former name of Taiwan, Formosa.

The landscape architect may find Cypripedium formosanum useful as a low growing perennial bulb with attractive flowers and leaves.

Cypripedium formosanum Leaf (23/04/2016, Kew Gardens, London)

Cypripedium formosanum Leaf (23/04/2016, Kew Gardens, London)

Ecologically,  Cypripedium formosanum flowers are attractive to pollinating insects.

The Royal Horticultural Society have given  Cypripedium formosanum their prestigious Award of Garden Merit in 2012.

Cypripedium formosanum prefers moist, humus rich, fertile, well-drained soils. It tolerates most pH of soil.

Cypripedium formosanum requires little maintenance. Large clumps may be divided during its dormant period.

DAVIS Landscape Architecture

Landscape Architecture

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