Tree terms: b
- B/213 Technical committee
- Bacillus thuringiensis
- back cut
- backfill
- back-fill
- backland development
- bacteria
- bacterial canker
- bacterial wetwood
- bad debt
- badger
- badlands
- BALI
- ballast
- ballerina
- ballistic seeds
- BAP
- bar
- barber’s chair
- bare-rooted
- barge board
- bark
- bark beetle
- bark cambium
- bark chippings
- bark congestion
- bark crack
- bark exudate
- bark gauge
- bark inclusion
- bark ridge
- bark ringing
- bark-bound
- baroque garden style
- barrier zone
- barrister
- basal area
- basal stocking
- basal sweep
- base
- base saturation
- basic density
- basic slag
- Basidiomycetes
- bast
- bat roost
- bats
- bats (habitat)
- bats (survey)
- BCO
- beam
- beam and block floor
- bearing capacity
- beating up
- Beaufort scale
- beaver (Eurasian beaver, Castor fiber)
- bedding course
- bedrock
- beech bark disease
- beetle
- beetle bank
- belt
- belt brace
- benching
- bending moment
- beneficials
- benzene
- Berkeley earth project
- Bern convention
- berry
- biennial bearing
- bifurcate
- big tree plant
- bill hook
- billet
- binding course
- biochar
- biocide
- biodegradable
- biodiversity
- biodiversity (loss)
- Biodiversity 2020
- Biodiversity action plan
- biodiversity offset
- biofuel
- biofuel crops
- biogas
- biological concrete
- biological control
- biological oxygen demand
- biomass
- biome
- biomechanics
- biophilic cities
- biosecurity
- biosphere
- biosphere reserve
- biostimulants
- biotic factors
- biotope
- bird damage
- birdlime
- Birds directive
- birefringence
- bitmac
- bitmac pavement
- bittersharp variety
- bittersweet variety
- bitumen
- black act
- black frost
- black line disease
- blanket bog
- blaze
- bleeding (from bark)
- bleeding (from wood)
- bletting
- blight (planning)
- blight (plant health)
- blind wood
- blinding
- block pavers
- blocked drain
- blocking course
- blossom
- blue book
- board foot
- BOD
- bog
- bog mat
- bohemica (Fallopia ×bohemica, Bohemian knotweed)
- boilerplate text
- Bolam test
- bole
- bolete
- boll, bolling
- bomb damage
- bond
- bonfire
- bonsai
- Bordeaux mixture
- bordered pit
- boreal
- borehole
- borer
- borough
- bosco verticale
- botanic garden
- botanical art
- bottlebutt
- boulder clay
- boulevard
- bower
- bowsaw
- bracing
- bracket
- bract
- braided track
- braided watercourse
- branch
- branch angle
- branch bark ridge
- branch bark ridge crack
- branch collar
- branch drop
- branch order
- branch ridge
- branch shedding
- branch spread
- branch stub
- branch subsidence
- branch subsidence crack
- branch trace
- brash
- brash mat
- Brazil
- BRE
- breaker bar
- breast height
- breastwood
- BREEAM
- brick pavers
- bridleway
- brindle
- British Association of Landscape Industries
- British standard
- British Standards Institution
- British Trust for Conservation Volunteers
- brittle
- brittle failure
- broadleaf
- bronze birch borer
- brown earth
- brown rot (fruit)
- brown rot (wood decay)
- brown spot needle blight
- brown tail moth
- brownfield site
- browse line
- browsing
- Brundtland Commission
- brush cutter
- brush hook
- brushwood
- brutting
- bryophytes
- BS
- BS 1377-4 (1990)
- BS 3882 (2007)
- BS 3936-1 (1992)
- BS 3936-3 (1992)
- BS 3998 (2010)
- BS 4043 (1989)
- BS 4428 (1989)
- BS 5837 (2012)
- BS 5930 (1999) +2 (2010)
- BS 7370-4 (1993)
- BS 7533-3 (2005)
- BS 8206-2 (1992)
- BS 8516 (2008)
- BS 8545 (2014)
- BS 8596 (2015)
- BTCV
- BTEC
- buckling
- bud
- bud scale scar
- budbreak
- budded rootstock
- budding
- buddleia
- budwood
- buffer zone
- Building Act 1984
- Building Regulations
- Building Research Establishment
- Building Research Establishment environmental assessment method
- building sand
- buildmark
- built environment
- bulk density
- bullnose
- bund
- bundle planting
- burr
- bush
- bush (fruit tree)
- bush fruit
- Business and Technology Education Council
- butt
- butterflies
- buttress
- bye-laws
- byway
- byway open to all traffic