Dendrobium speciosum

42.14704514, -87.78974915

Rock Lily Orchid

Long sprays of medium-sized, creamy white flowers are produced from large, swollen pseudobulbs topped with thick, leathery green leaves. Bright light, high humidity, and very well-drained soils are the keys to success in growing this orchid. This species is known for producing large clumps over time, resulting in tremendous floral displays.

This species grows on trees, boulders or cliffs all along the east coast of tropical Australia and in a band following the Tropic of Capricorn in the Far East.

The orchid family consists of a large number of genera, each with its own unique characteristics. A common characteristic, however, is the basic form of the flower, which consists of three petals surrounded by three sepals -- often in dramatic and contrasting colors and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most orchids tend to prefer a semi-tropical or tropical environment (USDA Zones 9-11) and have epiphytic roots -- meaning they derive moisture and nutrients from the air and support from another plant; few orchids grow in soil. Orchids usually prefer a diurnal temperature fluctuation -- meaning warmer days and cooler nights -- though the absolute temperature range (cool, intermediate or warm) varies by genus and is consistent with their natural habitat. While requiring adequate sunlight for a stunning bloom display, most orchids will not tolerate sustained direct sun.

Many varieties have pseudobulbs, a portion of the stem between leaf nodes that stores water to help sustain the plant through dry periods. Other varieties are monopodial, meaning upward growth is from a single growing point.

There is an exception to almost every general statement one can make about orchids. The family continues to challenge taxonomists.

Soil:
Moist
Plant Shape:
Creeping
Exposure:
Full Sun
Bloom Time:
January - February
March - April
Bloom Color:
White
Landscape Use:
Bedding or Border
Specimen Plant
Wildlife Interest:
Attracts Butterflies
Plant Type:
EPIP
Hardiness Zone:
10 - 13