RHS Find a Plant
Curated source
Royal Horticultural Society
The Royal Horticultural Society’s horticultural plant reference for UK + European gardeners — cultivation guidance, RHS hardiness ratings (H1a–H7), Award of Garden Merit status, and right-plant/right-place notes. Plotwright’s region-appropriate horticultural reference for European garden plants.
What you'll find here
European cultivation guidance
RHS hardiness rating context (H1a–H7)
Award of Garden Merit status
Right-plant/right-place notes for European gardens
Specific data we draw from it: cultivation notes, RHS hardiness rating, sun/soil/aspect guidance, mature size + habit.
Good to know
Hardiness vocabulary. RHS hardiness ratings (H1a–H7) are a UK/European scale distinct from USDA zones; surface them as context alongside the USDA range rather than remapping one onto the other.
Search-landing citation. RHS has no public per-taxon API, so the citation is the Find-a-Plant search landing for the binomial; the specific cultivar page is reached from there.
How to cite this source
Cite the RHS Find-a-Plant search for the binomial (https://www.rhs.org.uk/plants/search-results?query=<binomial>); RHS hardiness ratings + AGM status are the European-specific values worth carrying.
License
RHS content is © Royal Horticultural Society; Plotwright paraphrases cultivation guidance with attribution and links rather than reproducing text.
Caution
RHS guidance is tuned to the UK / temperate-European climate; mark region context before generalising its cultivation advice to other climates.
Cited by plants
No catalog plant cites this source yet.