Hollyhocks, also known as Alcea rosea, are a garden favorite for their towering flower spikes that can reach up to three feet ...

A robust biennial or short-lived perennial to 2m or more, with shallowly lobed, rounded leaves and long erect racemes of open funnel-shaped flowers to 10cm across, which may be pink, purple, red, ...

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.

Read more: 14 Tips For Growing A Healthy Garden Hollyhock, alcea rosa, is a jaw-droppingly beautiful flowering plant related to hibiscus and cotton in the mallow family. Originally native to Asia, ...