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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
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.
the RHS today and get 12 months for the price of 9
Other common names
iris 'Blue Hill'
Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer
Reticulata irises are small, bulbous perennials with narrow leaves almost square in section, and solitary, sometimes fragrant purple, yellow or blue flowers in early spring
'Blue Hill' is a bulbous perennial, to 12cm in height, with erect, green, strap-like leaves and violet-blue flowers in spring; the falls have a white speckled throat and a yellow central band
Toxicity Ingestion may cause severe discomfort
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or West-facing or East-facing
Exposure Exposed or Sheltered
MoistureWell-drained, Moist but well-drained
SoilChalk, Sand, Loam
Time to ultimate height
Grows best in full sun in well-drained soil, or in a bulb frame
Lift and divide bulbs in early autumn; see bulb propagation
Suggested planting locations and garden types
Flower borders and beds
City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Rock Garden Gravel Garden
Pruning No pruning required
Pests Susceptible to damage by slugs and snails, aphids, iris sawfly and leaf miners
Iris ink disease, leaf spot, virus diseases and rust diseases may occur; see iris diseases
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Join the RHS today and get 12 months for the price of 9