Tree terms: g
- G
- gabion
- gable
- Gaia hypothesis
- gall
- gallows bracket
- gambrel roof
- game
- Ganoderma spp.
- garden
- garden city
- garden city movement
- garden design (history)
- garden escape
- garden history
- garden suburbs
- garden village
- gardenesque gardens
- gas hydrate
- gazebo
- genera
- genetic engineering
- genus
- geocell
- geo-engineering
- geographical loading
- Geological conservation review
- geology of Britain viewer
- geomembrane
- geosynthetic
- geotechnical engineering
- geotextile
- germination
- ghost hedge
- ghyll
- giant hogweed
- giant knotweed (Fallopia sachalinensis)
- gibberellin
- giga-
- ginkgo (Ginkgo biloba)
- girdle
- girdle scar
- girdling root
- girth
- glacial origin
- glade
- glare
- glaucous
- glazed frost
- gley
- global carbon budget
- global conveyor
- global dimming
- global warming
- glyphosate
- Gnetophyta
- goats (Capra aegagrus hircus)
- GPDO
- GPR
- grade
- graft chimera
- graft incompatibility
- graft union
- grafting
- grafting (natural)
- grafting (propagation)
- grafting (to make structures)
- graftwood
- grain
- Grampian condition
- grandfather rights
- granulovirus
- grass paving
- grass-competition
- grasscrete
- grating
- gravel
- gravel board
- grazing
- great crested newt
- great storm
- green (environment)
- green (wood)
- green belt
- green cluster
- green density
- green economics
- green growth
- green gym
- green infrastructure
- green lung
- green monument
- green oak
- green revolution
- green roof
- green space
- green space (benefits)
- green space benefits (economy)
- green space benefits (health)
- green space benefits (social cohesion)
- green space benefits (trees and woodland)
- green space benefits (urban design)
- green space benefits (urban environment)
- green space benefits (wellbeing)
- green space benefits (wildlife)
- green tunnel
- green volume
- green wall
- green weight
- greenfield site
- greenhouse effect
- greenhouse gas
- greenhouse gas emissions
- greenwash
- grex (gx)
- grey squirrel
- grit
- grit sand
- ground anchor
- ground beam
- ground frost
- ground guard
- ground ivy
- ground layer
- ground level visual inspection
- ground penetrating radar
- ground preparation
- ground reinforcement
- ground reinforcement cellular systems
- ground rent
- ground vegetation
- groundwater
- groundworks
- Group
- group (of trees)
- group selection system
- group shelterwood system
- grove
- growing margin
- growth flush
- growth habit
- growth rate
- growth retardant
- growth ring
- growth stresses
- grub out
- grumble line
- gulf stream
- gully
- gum
- gummosis
- guttation
- gutter
- guying
- gymnosperms
- gypsy moth