Sobralia macrantha

Sobralia macrantha

Sobralia macrantha or large-flowered Sobralia is the most grown orchid of the genus Sobralia.

It is very easy to grow, care is similar to that of Cymbidiums.

It is part of the family Orchidaceae, subfamily Epidendroideae, tribe Sobralieae, genus Sobralia.

Description:

Sobralia macrantha is a terrestrial, rarely epiphytic, orchid with bamboo-like stems and leaves.

Stems are up to 2.5 m long.

Leaves are narrowly to widely lanceolate, plicate, pointed, spreading and rigid.

The terminal inflorescence is short and conical. The flowers appear sequentially and the bloom lasts 1-2 days, but the plant blooms for a longer period of time. Sepals and petals are pink. The lip is very large with a dark pink margin, white inside with a yellow tint. The flowers are up to 15 cm in diameter.

Nomenclature:

Common name:

Large-flowered sobralia

Synonyms:

Cattleya macrantha, Sobralia macrantha var. alba, Sobralia macrantha f. alba, Sobralia macrantha var. macrantha, Sobralia macrantha var. purpurea

Etymology:

Sobralia: in honor of Dr. Francisco Sobral, Spanish botanist of the 18th century
Macrantha: from the Greek makrós (big, long) and ánthos (flower)

Origin:

Mexico to Costa Rica

Habitat:

On leaf waste over rocks, sandy soils, at 90-3,400 m altitude

Care:

Temperature:

Diurnal: 18-24 °C
Nocturnal: 14-16 °C

Light:

Sun, light, partial shade

Water:

Keep moist, do not allow the substrate to dry out completely

Hygrometry:

50%

Substrate:

Sandy soil or bark with perlite

Feed:

20-20-20 fertilizer diluted to half of recommendation, once a week

Repot:

After flowering

Propagation:

Division:

Divide the plant when repotting.

Image sources

  • Sobralia macrantha: Rl

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