Oak leaves
Language of flowers - meanings
In the language of flowers, friendship;
Glossary of terms
A reference section with categories and short explanations.
Oblongatus
Bonsai terms
Oval
Officinalis
Bonsai terms
Medicinal
Offset
Special terms
Traditional name for a lateral shoot, often with root primordia or already formed roots. Accordingly, the plant on which offsets form is called the mother plant.
Offset formation
Cactus grower terms
The natural, genetically inherent ability to produce daughter stem shoots (offsets) in a number of cactus species, or induced artificially by removal of the stem's growing point.
Offsets
Cactus grower terms
Lateral shoots of cacti.
Offshoot
Cactus grower terms
A young shoot of a plant arising from the stem or root. Among hobbyists the terms "shoot" or "plantlet" are more commonly used.
Offshoots
Special terms
Aboveground shoots formed from axillary buds on rhizomes and roots, easily detached and often possessing their own root system.
Oki-goe: (oki-goe)
Bonsai terms
Granular or powdered fertilizer.
Oleander
Language of flowers - meanings
In the language of flowers attention;
Ontogeny (ontogenesis)
Cactus grower terms
Individual development, the entire complex of a plant's life activities and structure, beginning with its origin from a fertilized egg cell, a vegetative bud, or the division of a mother cell, and continuing until the plant's death.
Opposite leaf arrangement
Special terms
Arrangement of leaves in which two leaves arise from a stem node and are positioned opposite each other.
Orange flowers
Language of flowers - meanings
In the language of flowers: innocence, eternal love, wedding;
Orangery
Landscape terms
A park structure with one or more halls intended for cultivating citrus and other exotic plants. It can serve as a winter garden.
Orchid
Language of flowers - meanings
In the language of flowers: love, refinement, beauty, Chinese symbol of childhood;
Organic constituents
Cactus grower terms
Complex compounds of the substrate's soil fractions formed as a result of the decomposition of organic substances, for which carbon is an essential element.
Organic fertilizers
Special terms
Fertilizers of plant or animal origin, for example horse or cow manure, soil organisms, which are not absorbed by plants immediately.
Organic matter
Cactus grower terms
A component of soil that is of plant or animal origin.
Ornamental flowering plants
Special terms
This is a comparatively small group of plants that are grown solely for their beautiful, showy flowering. Among flowering houseplants there are shrubs, subshrubs, herbaceous plants, and bulbous plants. Among them one can single out specime…
Ornamental foliage plants
Special terms
They provide ornamental interest either through an unusually striking leaf shape (ferns, philodendrons), or through the bright coloration of their leaves in the most unexpected combinations (begonias, marantas, crotons, many acanthaceous p…
Osmosis
Cactus grower terms
(From Greek osmos - pressure, push) - the ensemble of physico-chemical processes leading to thermodynamic equilibrium and the equalization of solution concentrations on both sides of a membrane. It is ensured by the slow transfer of low-mo…
Osmotic gradient
Cactus grower terms
Difference in osmotic pressure across a membrane.
Osmotic pressure
Cactus grower terms
Excess external pressure that must be applied to the solution side to stop osmosis — the influx of solvent into it through the semipermeable membrane separating them.
Outline
Landscape terms
The linear outline of an object, the contour of a tree or shrub; 2) a plan of an area, drawn by hand, indicating the planting locations of plants, the arrangement of structures, roads, etc.
Ovary
Cactus grower terms
The lower, enlarged part of the pistil that contains the ovules.
Ovary
Special terms
Part of the pistil of flowering plants.
Own-root plants
Cactus grower terms
Plants that develop on their own roots and do not require grafting.
Oyaki: (oyaki)
Bonsai terms
The mother tree in air layering.