Pollard
The practice of pruning tree branches back to the trunk to encourage the production of young shoots and foliage. Often used in the development of ornamental trees.
Pollen
Borne on the anthers of most flowers, pollen are the male sex cells essential for pollination.
Pollination
The transfer of pollen - by insects, wind or hand - to the female stigma, after which fertilisation of the ovule ensues.
Pollinia
A mass of pollen, eg, grains gathered together in a clump, as opposed to being individually enclosed in a sac.
Pompon/pompom
Refers to the flowerhead of blooms, such as the dahlia or chrysanthemum, which is plump and spherical.
Potash
Potassium. Chemical symbol K in the NPK formulae, potassium is responsible for flower and fruit production in plants.
Potting on
The transfer of a plant from one pot into a larger one (usually the next size up) to allow more space for root development.
Pagination for glossary terms starting with the letter "p"
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