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All ratings refer to the UK growing conditions unless otherwise stated. Minimum
temperature ranges (in degrees C) are shown in brackets
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
'Orange Souvereign' is a perennial bulb with dark green strap-shaped leaves and stout stems to 45cm in height bearing up to 6 funnel-shaped orange flowers up to 15cm across
'Belinda' is a bulbous perennial to 50cm in height, with strap-shaped leaves and funnel-shaped deep crimson flowers to 18cm across, shading to scarlet in centre
H. papilio is a robust species producing abundant leafy growth. Flowers are borne 2 or 3 to a stem, to 50cm tall, and have distinctive colouring, the greenish-white tepals strongly streaked and edged with dark red. The lower pair of tepals, widely spread and pointed, suggesting the "butterfly" specific name. This is potentially an evergreen species, unless grown with managed dormancy, and may flower twice a year, in spring and autumn
'Bestseller' is a bulbous perennial with strap-shaped dark green leaves and funnel-shaped deep cerise flowers to 15cm across, up to six in an umbel on a stout stem to 35cm in height
R. bifida is a summer-deciduous, bulbous perennial, producing umbels of up to 5 narrowly funnel-shaped, bright, deep-red flowers in summer or early autumn, before or just as the new foliage emerges
'Clown' is a deciduous perennial with long, semi-erect, strap-shaped leaves and large white flowers with broad red stripes borne on thick stems in winter and early spring
'Star of Holland' is a bulbous perennial with dark green strap-shaped leaves and umbels of funnel-shaped, white-throated scarlet flowers to 15cm across, borne on stems to 45cm in height
Listed in the RHS Plant Finder
This plant is listed in the RHS Plant Finder book. At present our information about this plant is limited to a list of the nurseries that supply it. In time we will be adding more details including a description, growing information, advice and photographs.
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