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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.
Inca Glow is a clump-forming herbaceous perennial, to 45cm tall, with narrow green foliage and from late spring into autumn, heads of funnel-shaped, pink and yellow flowers. The outer petals are bi-lobed and the inner petals have a yellow zone marked with dark streaks
'Tessa' is a herbaceous perennial with mid-green, lance-shaped leaves and terminal clusters of red flowers on 1.2m tall stems. The inner petals have dark red streaks and the upper two a small yellow blotch
Inticancha Red is a compact, clump-forming perennial, to 30cm tall and wide, with dark-green, lance-shaped leaves. Clusters of red, funnel-shaped flowers, with deeper red-brown flecks and streaks on the inner petals, are borne from summer into autumn
'Selina' is a clump-forming perennial, to around 80cm tall, with lance-shaped leaves. The flowers comprise pale pink outer petals with darker flushes at their tips and inner petals with a pale yellow zone and dark streaks
'Mauve Majesty' is a clump-forming, tuberous perennial, to 75cm high, with lance-shaped leaves. Funnel-shaped pink to mauve flowers, with creamy-yellow centres and dark red streaks, are borne in terminal, open clusters from summer into autumn
Princess Louise is a compact, tuberous perennial, to 30cm tall and wide, with lance-shaped foliage. Magenta-pink flowers, with yellow throats and dark red flecks are borne in open, terminal clusters from summer to mid-autumn
'Flaming Star' is a vigorous perennial to 70cm tall, with light green foliage and umbels of funnel-shaped orange flowers opening from red buds, the outer petals flushed pink
Inca Exotica is a clump-forming perennial to 60cm tall. Foliage is strap- like, alternating along the stem. Flowers, produced in summer through into autumn, are golden-yellow with splashes of orange on the outer petals; the inner petals are yellow with brown speckling and orange tips
Princess Mathilde is a compact perennial, to 30cm tall, with lance-shaped leaves. Orange-pink flowers, with yellow throats and dark reddish-brown streaks and flecking on the inner petals, are borne from summer into autumn
inticancha passion is a compact, clump-forming perennial to 35cm tall with lance-shaped, dark green leaves. Funnel-shaped white flowers marked with purple blotches and dark streaks are borne from summer into early autumn
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