A really great hardy orchid which is well suited for growing in the UK. Calanthe sieboldii is a very attractive outdoor orchid and has bright yellow flowers. They are relatively easy to grow and Calanthe sieboldii should be planted in a sheltered position in a compost mixture of fibrous loam, leaf mould, sand and chopped sphagnum.
Indoor planting: They are best started off indoors from February-April and only planted outside when the fear of frosts have passed which is normally late April. Fill containers with a good potting compost such as John Innes number 3 and add fibrous loam and sphagum moss. Keep the soil moist and protect young growth from snails and slugs.
Plant outside: From Late April on wards into soils that have been prepared previously. Prepare soils by cultivating them to a depth of 20cms and digging in fibrous loam, leaf mould, sand and chopped sphagum. Plant the roots so that the growing tip is just below the soil surface. Remember to feed them during the flowering and leaf stage with foods such as are well rotted manures, Tomato feed and bone meal.
Keep plants moist (as they do not like to get dry) and well shaded.
Ideal when planted with cypripediums and Arisaema.
Flowering height: 18-20″ (45-50cms)
Flowering period: April-May
Soil type: A mixture of fibrous loam, leaf mould, sand and chopped sphagum
Aspect: Semi to full sun
Planting distance: 20cm between plants
Planting depth: 5-8cms
Full growing instructions also provided