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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.
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Other common names Welsh poppy
Synonyms Meconopsis cambrica
Family Papaveraceae
Genus Papaver can be annuals, biennials or herbaceous perennials with simple or pinnately divided leaves and short-lived, saucer-shaped, 4-petalled flowers which may be solitary or in racemes
Details P. cambricum is a tap-rooted perennial with light green, pinnately lobed leaves and bowl-shaped lemon-yellow or orange flowers 5cm across, from late spring to early autumn
Plant range W Europe
Foliage Deciduous
Habit Clump-forming
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H6
Partial Shade
Aspect South-facing or North-facing or West-facing or East-facing
Exposure Sheltered
Loam
Clay
Sand
MoistureMoist but well-drained
SoilLoam, Clay, Sand
pHAcid, Neutral
Ultimate height 0.1-0.5 metres
Ultimate spread 0.1-0.5 metres
Time to ultimate height 2-5 years
Cultivation Grows best in areas with cool, damp summers. Suitable for wildflower garden
Propagation Propagate by seed
Suggested planting locations and garden types Flower borders and beds Low Maintenance Cottage & Informal Garden Wildflower meadow Wildlife Gardens
Pruning No pruning required
Pests Slugs and snails may be a problem
Diseases Generally disease free
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