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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.
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Other common names
giant hyssop 'Blue Fortune'
Agastache are herbaceous perennials with simple, aromatic leaves and small 2-lipped tubular flowers in whorls forming dense spikes, in summer and autumn; some are rather tender but can be grown as annual bedding
'Blue Fortune' is an upright deciduous perennial forming a clump of leafy stems, with dense, interrupted spikes of small violet-blue flowers from summer to early autumn
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
Exposure Exposed or Sheltered
MoistureWell-drained, Moist but well-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Can be used as a gap-filler in herb gardens or in sunny, dry places, for example at the base of walls. Grows best in well-drained alkaline soil but will tolerate poor acid soils. Tends to be short-lived
Propagate by division in spring or propagate by semi-ripe cuttings in late summer for overwintering under cover. This cultivar is sterile
Suggested planting locations and garden types
Banks and Slopes Flower borders and beds
Cottage & Informal Garden Gravel Garden Mediterranean Climate Plants
Pruning Remove spent flowering spikes through the season
Pests Generally pest free
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
giant hyssop 'Blue Fortune'
Buy from £5.99 at the RHS Plants Shop
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