Gymea Lilies - Doryanthes excelsa. Everything about the Gymea lily (Doryanthes excelsa) is larger than life. The bold foliage can reach over four metres in height and some majestic flower stems can reach over ten metres tall.
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Dendrobium speciosum, or rock lily, is a popular and easy to grow Australain native orchid. It bears showy racemes of cream flowers with purple spotted throats in spring. It naturally grows as a lithophyte, growing on rocks, or sometimes as an epiphyte, growing on the trunk or branches of trees. It is not well adapted to growing well in normal soil, so should be grown in a position that is similar to the natural conditions. It can be grown in a pot with a good orchid mix. They can also be attached to logs or branches, or in rock crevices or shelves, with a good amount of leaf litter, bark chips or orchid mix placed around the roots. It likes a spot in dappled shade. It is not frost tolerant.
Propagation is by division of the clump. A spade or sharp instrument may be neeeded to separate the clump, as the plant is tough.
Dendrobium speciosum has been renamed Thelychiton speciosus.
Further reading: Australian Native Orchids (an article written by native plant expert Angus Stewart).
Flower colour: cream, white
Flowering season: spring
Maximum height: 0.5 metres
Minimum height: not specified
Maximum width: not specified
Minimum width: not specified
Will tolerate partial sunlight.
Light frost tolerance.
Plant is not salt tolerant.
Yes. Attracts: Native bees, insects.
This plant species will grow in the following climates: temperate, subtropical, tropical.
Loam: not suitable.
Clay: not specified.
Sand: not specified.
Native to: Australia.
Planting season: Any.
Types of fertiliser: not specified.