Geranium maderense

{{Short description|Species of flowering plant}}

{{Speciesbox

| image = Botanischer Garten Funchal IMG 1757.JPG

| status = CR

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Fernandes, F. |date=2011 |title=Geranium maderense |volume=2011 |page=e.T162102A5537899 |doi=10.2305/IUCN.UK.2011-1.RLTS.T162102A5537899.en |access-date=19 November 2021}}

| genus = Geranium

| species = maderense

| authority = Yeo

}}

Geranium maderense, known as giant herb-Robert{{BSBI 2007 |access-date=2014-10-17}} or the Madeira cranesbill, is a species of flowering plant in the family Geraniaceae, native to the island of Madeira. It is sometimes confused with another Madeira endemic, Geranium palmatum.{{cite web | url = https://frustratedgardener.com/2012/06/06/geranium-palmatum-versus-geranium-maderense/ | title = Geranium palmatum versus Geranium maderense | publisher = The Frustrated Gardener | date = 6 June 2012 | access-date = 13 July 2020}}

Growing to {{convert|120|-|150|cm|0|abbr=on}} tall and wide, it is a mound-forming evergreen perennial with deeply divided ferny leaves. Spectacular pink flowers on hairy red stems are produced in large panicles in summer.{{cite book|title=RHS A-Z encyclopedia of garden plants|year=2008|publisher=Dorling Kindersley|location=United Kingdom|isbn=978-1405332965|pages=1136}} It is grown as an ornamental plant in temperate regions, where it is hardy in mild or coastal areas down to {{convert|-5 |C|F|abbr=on}}. It has gained the Royal Horticultural Society's Award of Garden Merit.{{cite web|title=Geranium maderense AGM|url= https://www.rhs.org.uk/Plants/7896/Geranium-maderense/Details|work=RHS Plant Finder|publisher=Royal Horticultural Society|access-date=14 July 2020}}{{cite web | url= https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf | title = AGM Plants - Ornamental | date = July 2017 | page = 43 | publisher = Royal Horticultural Society | access-date = 2 March 2018}}