- Plant collecting - Plant community - Plant disease forecasting - Plant disease resistance - Plant ecology - Plant factory - Plant hormone - Plant identification - Plant LED incubator - Plantlet - Plant litter - Plant morphology - Plant nursery - Plant pathology - Plant propagation - Plant taxonomy - Plant tissue culture - Plant variety (law) - Plantsman - Plasticulture - Plastic mulch - Playscape - Pleaching - Pleasure garden - Pollarding - Pollination - Pollinator garden - Polyculture - Polytunnel - Pond liner - Post-harvest losses - Post hole digger - Potassium deficiency - Pot farming - Pot-in-pot - Potting bench - Potting soil - Precision seeding - Pruning - Pruning shears - Pseudanthium - Pulse drip irrigation Q Quiet area R Rain garden - Rainwater harvesting - Raised bed gardening - Rake - Reflecting pool - Remontancy - Rhubarb forcer - Ring culture - Ripening - Robotic lawn mower - Rock garden - Roji - Roman garden - Roof garden - Root - Root barrier - Root rot - Rootstock - Root trainer - Rose - Rose (symbolism) - Rose garden - Rose hip - Rose show - Rose trial grounds - Row cover - Royal Botanic Society - Royal Horticultural Society - Rubber mulch S Sacred garden - Sacred herb - Salt pruning - School garden - Sculpture garden - Season extension - Seawater greenhouse - Seed - Seed ball - Seedbed - Seed dormancy - Seedling - Seed orchard - Seed saving - Seed swap - Seed testing - Self-pollination - Semi-deciduous - Sensory garden - Shade garden - Shade tree - Shakespeare garden - Sharawadgi - Shed - Sheet mulching - Shell grotto - Shishi-odoshi - Shoot - Shovel - Shredding - Shrewsbury Flower Show - Shrub - Shrubbery - Sichuanese garden - Silver sand - Singapore Garden Festival - Slow gardening - Smudge pot - Snow mold - Sod - Sod roof - Soft landscape materials - Softscape - Soil - Soil conditioner - Soil conservation - Soil defertilisation - Soil fertility - Soil life - Soil moisture sensor - Soil pH - Soil test - Soil type - Sowing - Space in landscape design - Spade - Spanish garden - Species description - Specific replant disease - Spent mushroom compost - Sprigging - Sprouting - Square foot gardening - Stale seed bed - Statuary - Stepping stones - Strewing herb -