Acidic Soil

A biennial or short-lived perennial, reaching 2m (6 ft.) in height. The plant has a rosette of large, downy leaves...

A tall, bushy annual, 2 m (6 ft.) tall, it has strong-smelling, triangular, lobed leaves and large white, or violet-tinged,...

A half-hardy annual with finely divided, feathery leaves and umbels of very small white flowers. The fruits (seeds) are yellowish-brown...

A deciduous shrub or small tree, growing to 8 m (26 ft.), with thorny branches and small dark-green, lobed, ovate...

A tall, unpleasant-smelling biennial, 1.5-2.4 m (5-8 ft.) in height, with purplish-red speckles towards the base of the stems, finely...

An evergreen tree, growing to 8 m (26 ft.) high, with shiny, ovate leaves and fragrant white flowers, followed by...

A small evergreen tree, 2-6 m (6-19 ft.) tall, with light-green, oval leaves and thorny stems. Clusters of white flowers,...

A hardy evergreen shrub, growing to 2 m (6 ft.), with lanceolate, sticky, dark-green leaves. The papery, saucer-shaped white flowers...

A medium-sized evergreen tree, it grows to about 9 m (30 ft.) and has brown, papery bark and ovate, leathery...

Cinchona species are tender, evergreen trees varying in height, according to species and habitat, from 10-25 m (30-80 ft.). The...