A rounded underground storage organ, consisting of the stem base, and often with a fibrous outer layer. It is replaced by the plant annually. E.g Begonias.

Swollen root or underground stem with storage tissue (e.g. a potato)

A plant that completes its entire life cycle (growth, reproduction, death) in one season.

These plants have been field-grown and are supplied in a dormant state with the soil removed. E.g Roses

A plant that completes its entire life cycle in two years, growing in the first year and reproducing and dying in the second.

To flower and produce seed prematurely.

Refers to the point at which the plant has been grafted on to a rootstock and is usually found at soil level. This is the result of a technique called ‘budding’ where the bud of one plant is grafted o [..]

An underground storage organ with fleshy scale leaves from which the plant flowers and grows before becoming dormant. E.g Daffodils.

The stems of a raspberry or blackberry plant. Raspberry plants are supplied as dormant canes.

Placing seed potatoes in a tray or egg box in a bright, cool but frost-free place to encourage them to sprout prior to planting.