Complete Information about Gardening

A
Abdomen Abiotic Abortive
Abscission Absorption Acantha
Acaulescent Accent plant Acclimate
Acephate Achene Acicular
Acid Acid rain Acid soil
Acidic Acidifier Acidify
Acidity Acorn Acre
Acrid Activated charcoal Acute
Adhesion Adsorb Adventitious
Adventitious bud Adventitious root Adventitious roots
Aerate Aeration Aerator
Aerator sandals Aerial root Aerobic
Aeroponics Afternoon sun Aggregate
Aggregate fruit Aggregates Aggressive
Agrarian Air flow Air layering
Air plant Alba Alfalfa meal
Algae Algae bloom Alkaline
Alkaline soil Alkalinity Alkaloid
Allee Allele Allelopathy
Allotment Alluvial soil Almanac
Alpine Alpines Alternate
Alternate host Alternation of generations Altissima
Aluminum sulfate Amending soil Amendment
Ament American Rose Society Amino acid
Ammonia Ammonium nitrate Ammonium sulfate
Amoena Amphibian Amphibious
Anaerobic Anatomy Anchor plant
Anchor root Anemophilous Angiosperm
Angular Annual Annual plant
Annual ring Anther Antheridium
Anthocarp Anthocyanin Anthracnose
Anti-desiccant Antitranspirants Anvil pruners
Apex Aphid Apical
Apical bud Apical dominance Apical meristem
Apiculate Apomixis Appressed
Aquaponics Aquatic Aquatic plant
Arable Arachnid Arbor
Arbor day Arboretum Arboriculture
Arborist Arcade Archegonium
Architectural plant Areole Aromatic
Arroyo Arthropod Artificial light
Ascending Asexual Asexual propagation
Asexual reproduction Asparagus knife Aster yellows
Atom Atrium Attar
Attenuate Aucuba Auger
Austral Australis Autumnal
Auxin Average first frost date Average last frost date
Axil Axillary Axillary bud
Azurea 

B
B and b Bacillus thuringiensis Backbone
Backfill Background planting Backpack sprayer
Backyard wildlife habitat Bacteria Bacterial soft rot
Bacterial wilt Bagworm Baking soda
Balanced fertilizer Balcony garden Bale
Balled and burlapped Bamboo Banding
Banner Barbed Bare root
Bare-root Bare-rooted plant Bark mulch
Barley straw Barrier Basal
Basal cutting Basal rosette Base Dressing
Basic soil Bat house Beaked
Beard Bearded Bedding plant
Bedding Plants Bedrock Bedstraw
Bell jar Belvedere Beneficial insect
Beneficial predator Benomyl Bentgrass
Bentonite Berm Berry
Bicolor Bicolour Biennial
Bigeneric Binomial Binomial nomenclature
Biodegradable Biodiversity Biointensive gardening
Biological control Biological diversity Biological pest
Biological pest control Biomass Biome
Bipinnate Bird feeder Bird house
Bird netting Bisexual Black spot
Blackspot Blade Blanch
Bleed Bleeding Blend
Blight Blizzard Blood meal
Bloom Blossom end rot Blush
Bog garden Bog plant Bole
Bolt Bolting Bone meal
Bonemeal Bonsai Bonsai dish
Bordeaux mixture Border Boreal
Borer Boric acid Boron
Boss Botanist Botany
Botrytis Bottle garden Bottom heat
Bottom watering Bough Bow saw
Bower Bracken Brackish
Braconid wasps Bract Bracteoles
Bramble Branch Branch bark ridge
Branchlet Brassica Breed
Brier Bristle Brittle
Broad bean Broad spectrum Broadcast
Broadcasting Broadcasting seed Broadleaf
Brown rot Browns Bryophyte
Bubbler Bud Bud count
Bud eye Bud union Budding
Budworm Buffer Bug zapper
Bulb Bulb planter Bulbil
Bulblet Bulbous Burlap
Bush Bush bean Butterfly garden
Butterfly gardening Butterfly house Buttress
Bypass pruners 

C
C/n ratio Cabbage looper Cabbage rose
Cabinet Caerulea Cage
Cairn Calcar Calcareous
Calceolaria Calcitic limestone Calcium
Caliche Caliper Callus
Calories Calyx Cambium
Camouflage Campanulata Campanulate
Canadensis Candle Candles
Cane Cane berries Canker
Canopy Capillary action Capillary mat
Capitata Capitulum Capsule
Captan Carbaryl Carbohydrate
Carbon Cardinalis Carnivore
Carnivorous Carolina Carotene
Carotenoid Carotenoids Carpel
Cascade Cash crop Catch crop
Caterpillar Caterpillars Catkin
Cedar apple rust Cedar planter Cell pack
Cell tray Cell wall Cellulose
Celsius Centigrade Central leader
Central spine Certification Chafe
Chaff Chalk Champain
Chaparral Charcoal Chicken manure
Chilling requirement Chilling requirements Chinch bugs
Chipmunk Chipper Chipping
Chlorophyll Chloroplast Chlorosis
Chlorotic Chromosome Cicadas
Ciliate Citronella Citrus
City water Cladode Clasping
Class Clay pot Clay soil
Climate Climber Climbers
Cline Clipped hedge Cloche
Clone Cloning Closed system
Club root Clump Clump-forming
Cluster Cobblestone Coccinea
Cocoa bean hulls Coffee grounds Cohesion
Cold compost Cold frame Coldframes
Cole crop Collar Colonial
Colonize Color chart Colored leaf
Columella Column Community garden
Compacted Compacted soil Compaction
Companion plant Companion planting Complete fertilizer
Complete flower Complete metamorphosis Composite
Compost Compost activator Compost bin
Compost heap Compost pile Compost plant
Compost tea Composted manure Composting
Compound flower Compound leaf Compound leaves
Compressed Condensation Conductivity
Cone Conifer Coniferous
Conservation Conservatory Consumer
Contact insecticide Container Container gardening
Container Grown Container plant Contorted
Contractile Cool season grasses Cool season vegetables
Cool-season crop Cool-season grass Co-op
Copper Cordata Cordate
Cordon Core aeration Coriaceous
Corm Cormel Corn gluten meal
Cornuta Corolla Corona
Corrugated Corymb Costa
Cottage garden Cottonseed meal Cotyledon
Courgette Courtyard Cover crop
Cow manure Cracking Creeper
Crenate Creosote Crest
Crested Cricket Crock
Crop rotation Cross Cross pollination
Crossing Cross-pollination Crotch
Crown Crown rot Crozier
Crucifer Crushed egg shells Cucumber beetle
Cucumis Culinary Culinary herb
Culm Cultivar Cultivate
Cultivation Cultivator Cultural control
Cupped Curb appeal Curved bed
Cut back Cut flowers Cuticle
Cutin Cutting Cutting garden
Cutworms Cycad Cyme
Cytokinin Cytoplasm 

D
Damping off Damson Dappled shade
Day length Day neutral Daylily rust
Days to maturity Dead head Dead wood
Deadhead Deadheading Dead-heading
Decidua Deciduous Decoction
Decomposer Decomposing Decomposition
Deep shade Deep soil Deep watering
Deer fencing Deer repellent Deficiency
Defoliate Defoliation Degradable pot
Dehisce Dehiscent Dehydration
Delta Deltoid Demonstration garden
Denitrification Dentata Dentate
Denude Deoxyribonucleic acid Desert soil
Desiccant Desiccation Determinate
Dethatch Detritus Deutzia
Diatomaceous earth Dibber Dibble
Dicot Dicotyledon Dieback
Differentiation Digging fork Diocecious
Dioecious Diploid Direct seeding
Direct sowing Disbud Disbudding
Disease resistance Disease tolerance Disease-resistant
Dish garden Disinfect Disk flower
Dissected Dissectum Distal
Distilled water Dither Dividing
Dividing plants Division Dolomitic limestone
Dolly Parton Domed Domestica
Dominance Dormancy Dormant
Dormant oil Dormant period Dormant Spray
Dorsal Double dig Double digging
Double fertilization Double flower Double potting
Double-dig Downspout Downy mildew
Drain Drainage Drawn
Dried blood Drift Drill
Drip irrigation Drip line Drooping
Drought Drought Resistant Drought Tolerant
Drupe Dry creek Dry rot
Dry shade Dry stone wall Drying flower
Dust Dust mulch Dusting
Dutch Elm disease Dwarf Dye plant

E
Earthing up Earthworm castings Earthworms
Earwig Ecosystem Eddish
Edema Edger Edging
Edging plant Edging plants Edging shears
Edible Edible landscape Edible landscaping
Efflorescence Egg shells Electric fence
Electrical conductivity Embryo Emergence
Emulsifiable Enation Endangered species
Endemic Endophyte Endosperm
English planter Entire Entire leaf
Enzyme Ephemeral Epidermis
Epiphyte Epiphytic Epithet
Epsom salts Eradicate Erect
Ericaceous Erosion Escaped plant
Espalier Essential amino acid Ethnobotany
Ethylene Etiolate Etiolation
Evaporation Evapotranspiration Evenly moist
Everbearing Everblooming Evergreen
Evergreen Clematis Evergreen plant Everlasting
Everlastings Excelsior Exfoliate
Exfoliating Exposed Expression
Exserted Extension agency Extension service

F
F1 hybrid F2 hybrid Fahrenheit
Fairy ring Falcate Fallow
Fancy Farina Fasciation
Feed store Feeder root Female plant
Fence Fermentation Fertile
Fertilization Fertilize Fertilizer analysis
Fertilizer burn Fertilizer ratio Fertilizer spike
Fetid Fiber Fibrous root
Fibrous root system Fibrous-rooted Fiddlehead
Field capacity Field grown Filament
Filial generation Filiform Filler
Filtration system Final grade Fine fescues
Fine-textured soil Finial Fireblight
Fireplace ashes Firming First true leaves
Fish emulsion Fishmeal Fixation
Flash tape Flavone Floating plant
Floating plants Floating row cover Floral envelope
Flore pleno Floret Floribunda
Floricanes Floriculture Floriferous
Flower Flower bed Flower head
Flower spike Flowering period Flush
Focal plant Focal point Foiliar fertilizer
Folding saw Foliage Foliar
Foliar feeding Foliar fertilizer Folly
Food chain Forcing Forked
Formal garden Foundation plant Foundation planting
Fountain Frass Freeze
French bean French filet bean Friable
Frond Frost Frost hardy
Frost line Frost pocket Frost tender
Frostbite Frost-free days Fruit fly
Fruiting spur Fruiting wood Fruticosa
Full shade Full sun Fully double
Fumigate Fumigation Fungi
Fungicide Fungus Furrow
Fusarium Fusarium wilt Fusiform

G
Gall Gamete Gametes
Gametophyte Garden clogs Garden club
Garden design Garden designer Garden gloves
Garden line Garden rake Garden rooms
Garden seat Garden soil Garden thug
Gardener Gardening Gazebos
Gazing ball Gelatin Gene
Gene pool Genera Genetic engineering
Genetically modified Genome Genotype
Genus Geophyte Geotextile
Geotropism Germ Germinate
Germination Germination rate Gesneriad
Gibberellin Girdle Girdled
Girdling Girdling root Girdling roots
Glabrous Glade Gland
Glans Glasshouse Glauca
Glaucous Glen Glochid
Glume Go to seed Gopher
Gourd Grade Grading
Graft Grafting Grafting tape
Grain Grandiflora Granular fertilizer
Grass Grass catcher Grass clippings
Grass shears Grasshopper Grasshopper spore
Gray mold Gray water Green manure
Green thumb Greenbelt Greenhouse
Greens Greensand Gregarious
Grotto Ground cover Ground squirrel
Ground water Grow lights Growing habit
Growing media Growing medium Growing point
Growing season Growing tray Growth form
Growth regulator Grub Grub worm
Grubbing Guano Guard cell
Gutter Gymnosperm Gypsum
Gypsy moth 

H
Habitat Haha Ha-ha
Half hardy Half-hardy Half-hardy annual
Half-Hardy Annuals Hammock Hand picking
Hand rake Hand tool Hanging basket
Haploid Hard freeze Hard frost
Hard pruning Harden off Hardening
Hardiness Hardiness zone Hardpan
Hardscape Hardscaping Hardware cloth
Hardwood Hardwood cutting Hardy
Hardy Annuals Harrow Harvesting
Haustoria Hay Heading back
Healing Heartwood Heat zone
Heath Heating cable Heating mat
Heave Heaving Heavy metals
Heavy soil Hedge Hedge row
Hedge shears Hedgerow Heel
Heel In Heeling in Heirloom
Heirloom garden Heirloom plant Heirloom vegetables
Hemiptera Herb Herb garden
Herbaceous Herbaceous border Herbalism
Herbalist Herbarium Herbicide
Herbivore Herbivorous Hermaphroditic
Hermitage Heterosis Highbush
Hill planting Hill up Hilling up
Hilum Hip Hirsute
Hispid Hoary Holdfast
Holding bed Honeydew Hoop house
Hoops Hopper Horizontalis
Hormone Horse manure Hort.
Horticultural oil Horticultural society Horticulture
Horticulturist Hortus Hose guide
Hose-end sprayer Host Hot cap
Hotbed House plant Houseplant
Humic acids Humidifier Humidity
Humidity tray Hummingbird feeder Hummock
Humus Humus soil Husband
Hybrid Hybrid Tea Hybrid vigor
Hybridization Hybridizer Hybridizing
Hydrogen Hydroponic Hypha
Hyphae Hypocotyl 

I
Ikebana Imbricate Imperfect
In situ In vivo Inbred
Incisions Incomplete Incomplete fertilizer
Incomplete flower Increases Incubation
Indehiscent Indeterminate Indian summer
Indigenous Indirect sun Indoor gardening
Inedible Inermis Inert
Infection Infertile Inflorescence
Informal design Informal garden Infusion
Inhibitor Inoculant Inoculants
Inoculation Inorganic Inorganic fertilizer
Inorganic mulch Insect Insecticidal soap
Insecticide Insecticides Insectivorous
Insectivorous plant Instar Integrated pest management
Intensive planting Intercrop Intercropping
International Code of Botanical Nomenclature Internode Interplant
Interplanting Interspecific Interstem
Introduced Invasive Invasive plant
Invertebrate Ipm Iris borer
Iron chelate Irradiation Irrigation
Island bed 

J
Japanese beetle Japanese garden Japonica
Jiffy pellets Joint Jointed
Journal Jubilee Juglone
Juvenile 

K
Keel Kentucky bluegrass Kernel
Kids garden Kitchen garden Knee
Kneeler Kneepad Knocking out
Knot garden Kousa Kudzu

L
Lace bug Lacebark Lacecap
Laced Lacewing Lactiflora
Ladybug Lagoon Lamella
Lamina Lanceolate Land grant university
Landscape Landscape architect Landscape blocks
Landscape design Landscape designer Landscape fabric
Landscape timbers Landscaping Larva
Larvae Late blight Late freeze
Latent bud Lateral Lateral bud
Latex Lath Lath house
Latifolia Lattice Lawn
Lawn roller Lawn seed Layering
Leach Leaching Leaf
Leaf bag Leaf blade Leaf blower
Leaf cutting Leaf margin Leaf miner
Leaf mold Leaf mould Leaf rake
Leaf roller Leaf scar Leaf scorch
Leafhopper Leaflet Leafspot
Legume Leggy Lemma
Level Lichen Lifting
Light Light frost Light intensity
Light shade Light soil Lignin
Limbing up Lime sulfur Limestone
Linear Liner Liners
Linnaeus Lipid Liquid manure
Live animal trap Liverwort Livid
Loam Locule Locust
Lopper Lopping Low maintenance plants
Lowbush Lutea Lycopene

M
Macerate Machete Macronutrient
Maculata Maculate Magnesium sulfate
Maiden Mail order nurseries Main shoot
Malathion Male plant Manganese
Manure Manure tea Marbled
Margin Marginal plant Marginally hardy
Maritima Maritime Market garden
Mass planting Massing Master gardener
Mattock Maturation Mature specimen
Maturity date Meadow Meadow garden
Mealy bugs Mechanical filter Medicinal plants
Medium Meiosis Membrane
Meristem Mesic Mesophyll
Metabolic Metamorphosis Meter
Micro- Micro nutrient Microbe
Microclimate Micronutrient Microorganism
Microphyll Micropropagation Microspore
Midrib Mildew Milorganite
Ming tree Miniature Rose Mint
Mist propagation Mister Miticide
Mitosis Mixed border Mixed borders
Moist but not wet Mold Molecule
Moles Mollis Mollusk
Molt Monocarpic Monocot
Monocotyledon Monoculture Monoecious
Monopodial Moon planting Mordant
Morel Morifolium Morning sun
Morphology Mosaic Moss
Moth trap Mother plant Mottled
Mould Mouth Mowing strip
Mucilaginous Mucronate Mulch
Mulching Mulching mower Multicolor
Multifid Multiple fruit Multi-stemmed
Mummy Muriate of potash Mushroom
Mushroom manure Mutant Mutation
Mycelium Mycoplasma Mycorrhiza
Mycorrhizae Mycorrhizal 

N
Nana Native Native plant
Natural Natural light Natural selection
Naturalize Necrosis Nectar
Needle Neem Nematicide
Nematode Nematology Netting
Nettle Neutral Neutral soil
New growth New wood Niche
Nicotine sulfate Niger Night-blooming
Nigra Nitrate of soda Nitrification
Nitrogen Nitrogen fixation Nitrogen fixing
Nocturnal Nodule Nomenclature
Non-native plant Non-selective herbicide Nonselective pesticide
Nonvascular Normal sweet corn Notched
Novae-angliae Noxious Noxious weed
Nozzle N-P-K NPK ratio
Nubbin Nucleus Nursery bed
Nursery grown Nurseryman Nut tree
Nutlet Nutrient Nutrient Deficiency
Nutrient solution Nymph 

O
Obconic Obelisk Oblanceolate
Obovate Occidentalis Odoriferous
Offset Offshoot Omnivore
Opaque Open pollinated Open woods
Opposite Orangery Orbicular
Orchard Organelle Organic
Organic fertilizer Organic gardening Organic material
Organic matter Organism Organophosphate
Oriental fruit moth Orientation Ornamental
Ornamental grass Ornamental shrub Ornamental tree
Orris root Oscillating sprinkler Osmosis
Osmunda fiber Outdoor living area Outgrowth
Ovary Ovate Overgrown
Overplant Overripe Overseeding
Overwater Overwintering Ovoid
Ovule Own-root Oxidation
Oxygenating plant 

P
Pacifica Pagoda Palisade cell
Palmate Palmate leaf Panicle
Paper collar Paper mulch Paper pot
Parasite Parasitic Parasitic plant
Parch Parenchyma Part shade
Parterre Parthenocarpic Partial shade
Partite Parts per million Parviflora
Pass-along Passalong plant Pasture
Patented Pathogen Patio
Patio plant Patio tree Paver
Pea gravel Peach leaf curl Peat
Peat moss Peat pellet Peat pot
Peatmoss Pebble tray Pectin
Pedate Pedicel Peduncle
Pegging Pegging down Pelleted seed
Pelletized Pendant Pendula
Pendulous Penetration Perennial
Perennial ryegrass Perfect flowers Perfoliate
Pergola Perianth Perlite
Permaculture Permeable Pernicious weed
Perpetual Persicifolia Persistent
Pest Pesticide Petal
Petaloid Petiolar Petiole
PH PH scale Phenology
Phenotype Pheromone Pheromone trap
Phloem Phosphate Photoperiod
Photoperiodism Photosynthesis Phototropism
Phyla Phyllode Phylum
Physiology Phytochrome Phytotoxicity
Pickax Picotee Picta
Pigment Pileate Pill bug
Pinch Pinch back Pinch out
Pinching back Pinching Out Pine straw
Pinna Pinnata Pinnate
Pinnate leaf Pinnately compound Pinnatifid
Pinnatisect Pip Pisifera
Pistil Pistillate Pitchfork
Pith Pits Plant
Plant growth regulator Plant hardiness zone Plant lice
Plant tag Plant window Plantlet
Platanoides Pleaching Plicate
Ploidy Plug Plug tray
Plugs Plume Plunging
Pocket garden Poisonous Pole bean
Pole pruner Pollard Pollarding
Pollen Pollen tube Pollinate
Pollination Pollinator Pollinators
Pollinizer Polyethylene Polyethylene film
Polysaccharide Pome Pome fruit
Pond liner Population Porosity
Portico Post-Emerge Post-emergent herbicide
Pot bound Pot feet Pot on
Pot up Potager Potash
Potassium Pot-bound Potherb
Potpourri Potting Potting bench
Potting medium Potting mix Potting on
Potting shed Potting soil Potting up
Poultice Powdery mildew Praying mantis
Pre-chill Precipitation Precocious
Predatory insect Predatory mites Pre-Emerge
Preemergent herbicide Pre-emergent herbicide Preform
Pressure treated lumber Pressure-treated wood Pricking out
Prickle Primary growth Primocane
Primocanes Processed manure Procumbens
Produce Producer Propagation
Propagation chamber Prostrate Protected species
Protein Provenance Prune
Pruners Pruning Pruning saw
Pruning shears Pseudobulb Pteridophyte
Pteridophytes Pubescent Pulverulent
Pump sprayer Pungent Pupa
Push mower Pustule Pyramidal
Pyrethrin Pyrethrum 

Q
Quartered Quartz Quick lime

R
Rabbiteye Raceme Rachis
Radical Radicle Railroad tie
Rain barrel Rain gauge Rainfall
Raised bed Ramet Rampant
Ramps Rank foliage Raphe
Rasping Ratchet pruner Ray flower
Ray flowers Rebloomer Reblooming
Recurrent Recurved Red wriggler
Reed Reel mower Reflexed
Regular flower Rejuvenate Rejuvenation
Rejuvenation pruning Relative humidity Remontant
Renewal pruning Reniform Renovate
Renovation Repetition Replication
Repot Reproductive cell Reseeding
Residual Residue Resistance
Respiration Resting period Retaining wall
Reticulate Reverse osmosis Revert
Revolute Rhizobium Rhizoid
Rhizome Ribes Riddle
Riding mower Ring Bark Ringing
Riparian River rock Rock garden
Rock phosphate Rockery Rockwool
Rogue Roguing Rooftop gardening
Root Root ball Root bound
Root crop Root cutting Root cuttings
Root girdling Root hair Root hairs
Root prune Root pruning Root rot
Root zone Rootbound Root-bound
Rooting hormone Root-knot nematode Rootstock
Rosa Alba Rosarian Rose chafer
Rose hip Rosea Roseraie
Rosette Rotary mower Rotary spreader
Rotation Rotenone Rototiller
Rotted straw Rough grade Row cover
Row cover fabric Row covers Rufous
Rugose Runner Runoff

S
Sabadilla Saccate Salt hay
Salt marsh hay Samara Sandy soil
Sanguinea Sanitation Sap
Sapling Saponin Saprophyte
Sap-sucking insects Sargentii Sarment
Savanna Sawdust Scab
Scaffold branch Scald Scaly
Scape Scarecrow Scarification
Scarify Scarifying Scion
Scooping Scorch Scree
Screening Scuffle hoe Scythe
Seascape Season extender Seaweed extract
Secateurs Secondary growth Secret garden
Sediment Seed Seed bed
Seed coat Seed tape Seed tray
Seedbed Seedhead Seedheads
Seedling Seedpod Seepage
Selection Selective herbicide Selective pruning
Self pollination Self sowing Self-cleaning
Self-fertile Self-pollinating Self-pollination
Self-seeded Self-seeding Self-sterile
Semi-double Semi-double flower Semi-evergreen
Semi-ripe cutting Sempervirens Sepal
Septum Serrate Service area
Sessile Set out Seta
Setting out Sevin Sewage sludge
Sexual reproduction Shade Shade cloth
Shade netting Shade tree Shade-tolerant
Shallow soil Sharp sand Shear
Shearing Sheath Sheet composting
Shelf Shelterbelt Shoot
Short day plant Short-day Short-day plant
Shot hole Shovel Shovel prune
Shredder Shrub Shrub border
Sickle Side dressing Side-dress
Sideshoot Sieve Sieve cell
Signage Silica gel Silique
Simple Simple fruit Simple layering
Sinensis Single flower Sinuate
Slip Slope Slow release fertilizer
Slow-release fertilizer Sludge Slug bait
Slugs Smut Snag
Snail Snow mold Soaker hose
Sod cutter Softwood Softwood cutting
Soil Soil amendment Soil analysis
Soil ball Soil conditioner Soil crust
Soil drench Soil fertility Soil pH
Soil polymer Soil sample Soil structure
Soil temperature Soil Test Soil texture
Soil-borne disease Soilless mix Solarization
Solitary Soluble Soluble fertilizer
Soluble salt Solvent Somatic cell
Sooty mold Sowing Soybean meal
Spade Spadix Spathe
Spatulate Specific epithet Specimen plant
Speciosa Spent Spent flowers
Spermatophyte Sphagnum Sphagnum moss
Sphinx moth Spice Spider
Spider mite Spike Spiking
Spine Spines Spinosa
Spit Spitter Spittle bug
Sporangia Sporangiophore Sporangium
Spore Sporophyte Sporulate
Sprayer Spraying Spreader
Sprig Sprigging Spring flowering bulbs
Spring garden Spring sowing Sprinkler
Spritzer Sprout Spur
Spurs Square foot gardening Square-foot gardening
Squash bug Squirrel feeder Stake
Staking Stalk Stamen
Staminate Standard pot Starch
Starting medium State flower Stem
Stem cutting Stepping stone Sterile
Sterilization Sterilized soil Stick
Sticky card Sticky trap Stigma
Stinkbug Stipe Stipule
Stipules Stock plant Stolon
Stoloniferous Stoma Stomata
Stomate Stone dust Stone fruit
Stool Stool layering Stooling
Stopping Storing seed Strain
Stratification Streaked Stress
Striate Strike Striking
String trimmer Stunted growth Sublateral
Submerged plant Subshrub Subsoil
Subspecies Substrate Subtropical
Succession Succession planting Successive
Succulent Sucker Sugar enhanced
Sulfur Summer annual Summer fruit
Summer oil Summer solstice Sun scorch
Sunburn Sunken garden Sunscald
Superior oil Superphosphate Supersweet
Support Surface roots Susceptible host
Sustainable agriculture Swale Swamp
Sward Sylvestris Symbiosis
Symbiotic Symmetrical planting Synonym
Systemic Systemic Fungicide Systemic Insecticide

T
Tall fescue Tamping Tankage
Tannic acid Tannin Tap root
Taproot Tassel Taxa
Taxon Taxonomist Taxonomy
Teepee Temperate Temperate zone
Tender Tender plant Tendril
Tepal Tepary bean Tepee
Terminal Terminal bud Ternate
Terra cotta Terrace Terracing
Terracotta Terrain Terrarium
Terrariums Terrestrial Tessellate
Testa Tetraploid Thatch
Theatre Theme garden Thicket
Thin soil Thinning Thinning out
Thorax Thorn Three sisters
Thresh Thrip Throat
Thrum Thug Till
Tiller Tilth Time-release fertilizer
Tinged Tip burn Tip cutting
Tip layer Tip layering Tissue culture
Toadstool Tomato cage Tomato hornworm
Tomentosa Tomentose Tonsure
Tool rack Toothed Topdress
Topiary Topography Topsoil
Toxic Toxicity Trace elements
Trade name Trailing Training
Trait Transgenic Transpiration
Transplant Transplant shock Transplanting
Transplanting shock Trap crop Tree guard
Tree surgeon Treehopper Trellis
Trench Trench layering Trenching
Trifoliate Triloba Trimmer
Triploid Tropical Tropical plant
Trough Trowel True bulbs
True leaves Trug Trunk
Truss Tuber Tubercle
Tuberous Tuberous root Tumbler
Tundra Tunic Tunicate
Turf Turgid Turn under
Tussock Twine Twining

U
Ultraviolet (uv) Umbel Under glass
Underbrush Undercut Underground sprinkler system
Undergrowth Underplant Underplanting
Underripe Understock Understory
Undulate Union Unisexual
Unisexual flower Upland Urban horticulture
Utility cart 

V
Variable Variant Variegate
Variegated Variegated leaf Variegation
Variety Variety name Vascular
Vascular system Vector Vegetable
Vegetable garden Vegetable marrow Vegetation
Vegetative Vegetative growth Vegetative propagation
Vein Velamen Venation
Venous Ventilation Ventilator
Vermicomposting Vermiculite Vermiculture
Vernal Vernalization Verticil
Verticillium Verticillium wilt Viability
Viable Victory garden Virginiana
Virus Vista Vitamin b1
Vivipary Volcanic rock Volunteer
Volunteer seedling Vulgaris 

W
Wall garden Wardian case Warm season grass
Warm season grasses Warm season vegetables Warm-season crop
Washed sand Waste area Water feature
Water garden Water meter Water mold
Water plant Water requirement Water sprout
Water table Waterfall Watering
Watering in Watering wand Water-logged
Watershed Watersprout Weather forecasting
Weathering Weed Weed control
Weed eater Weed tea Weeder
Weeding Weeping form Well-drained soil
Wet feet Wet soil Wetlands
Wetting agent Wheelbarrow Whip
Whirligig Whiskey barrel Whiteflies
Whorl Wick Wide row gardening
Wide row planting Wide-row planting Wildflower
Wildflower garden Wildlife garden Willow water
Wilt Wilting point Wind break
Wind chime Window box Wings
Winter annual Winter kill Winter solstice
Winter sowing Winterize Winterkill
Wither Wood Wood ash
Woodland garden Woody Woody ornamentals
Woody perennial Woody plant Woolly
Worm Worm bin Worm castings
Worm casts Wounding Wrinkle

X
Xanthophyll Xeric Xeriscape
Xeriscaping Xerophyte Xylem

Z
Zygote