Kowloonese · CC BY-SA 3.0
Gai lan
Plant·Brassica oleracea var. alboglabra
Part shade to full sun
Sun
Moist soil
Water
Not recorded
Drainage
Not recorded
Hardiness
Coverage · 89 fields
No obvious inconsistencies found.
Growth and size10 fields
Plant type
Plant
AI estimate100 % agree
Height
50 cm“Brassica oleracea alboglabra is a PERENNIAL growing to 0.5 m (1ft 8in) at a fast rate.”
Spread
90 cm
AI estimate58 % agree
Height at age
—
empty
Spacing
45 cm (at least 30 cm)
AI estimate55 % agree
Growth rate
Fast“Brassica oleracea alboglabra is a PERENNIAL growing to 0.5 m (1ft 8in) at a fast rate.”
Habit
—
empty
Root depth
Shallow“The root pattern is flat with shallow roots forming a plate near the soil surface”
Forest garden layer
Herb layer
AI estimate90 % agree
Lifespan
~2 years
AI estimatenot measured yet
Roots6 fields
Root form
Plate root (shallow)“The root pattern is flat with shallow roots forming a plate near the soil surface”
Storage organ
None“It does not multiply vegetatively: it has no rhizomes, runners, suckers or offspring bulbs or tubers.”
Spreads
No“It does not multiply vegetatively: it has no rhizomes, runners, suckers or offspring bulbs or tubers.”
Lateral spread in cm
—
empty
Root depth in cm
—
empty
Mycorrhiza
Non-mycorrhizal
AI estimatenot measured yet
Light, water and soil9 fields
Sun
Hours of sun
6–8 h
AI estimatenot measured yet
Drought tolerant
—
empty
Tolerates waterlogging
—
empty
Soil type
Sand, loam, clay · best: clay“Prefers a heavy soil.”PFAF“Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil.”
pH
Drainage
Well-drained but moisture-retentive“An easily grown plant, it succeeds in full sun in a well-drained but moisture-retentive fertile preferably alkaline soil.”
Compacted soil
Copes badly
AI estimatenot measured yet
Climate5 fields
Hardiness
—
empty
Killing frost
—
empty
Growing temperature
5–25 °C · optimal 15–20 °C
AI estimatenot measured yet
Chill hours
0 h
AI estimatenot measured yet
Native range
—
empty
Care (becomes tasks in Manage)5 fields
Planting out
After the last frost · 14 days after · lasts 14 days
AI estimatenot measured yet
Watering
June · lasts 90 days
AI estimatenot measured yet
Feeding
After the previous stage · 30 days after · a balanced fertiliser
AI estimatenot measured yet
Protection
May · lasts 120 days · insects
AI estimatenot measured yet
Through the year3 fields
Harvest
After the previous stage · 60 days after · lasts 10 days“Gai lan is harvested around 60–70 days after sowing, just before the flowers start to bloom.”
Edible parts and pollination5 fields
Young flowering shoots and small leaves
Raw or cooked“Young flowering shoots and small leaves- raw or cooked.”PFAF“Older stems should be peeled.”
Stems and leaves
Stir-fried with ginger and garlic, or boiled or steamed and served with oyster sauce“The stems and leaves of gai lan are eaten widely in Chinese cuisine; common preparations include gai lan stir-fried with ginger and garlic, and boiled or steamed and served with oyster sauce.”
Pollination
Self-fertile · hermaphrodite“The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.”PFAF“The plant is self-fertile.”
Pollinated by
Bees“The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.”
Ecology5 fields
Attracts
Bees“The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.”
Pests
Cabbage worms, aphids, flea beetles, cabbage loopers, harlequin bugs
AI estimatenot measured yet
Diseases
Downy mildew“The plant can grow in partial shade, but care must be taken to provide sufficient ventilation, as this reduces the prevalence of downy mildew.”
Takes up
Sulfur, calcium, potassium
AI estimatenot measured yet
Fixes nitrogen
No
AI estimatenot measured yet
Propagation and names3 fields
Methods
Seed - sow April in situ., Cuttings root very easily at almost any time in the growing season[K]., seed, cuttings“Seed - sow April in situ.”PFAF“Cuttings root very easily at almost any time in the growing season[K].”PFAF“Seed - sow in succession from late spring to late summer or even early autumn in favoured areas.”PFAF“Cuttings of lateral shoots root easily and can be used to produce more plants.”
Difficulty
1 / 5
AI estimatenot measured yet
Seed
none
AI estimatenot measured yet
Not sorted yet38 fields
Fields the parser stores that this page has no row for yet. They show up here automatically, so nothing is hidden.
forage.DK.edibility_basis
inferred
AI estimatenot measured yet
forage.DK.foraging_months.notes
Provides a crop over a long period in the summer and autumn.“It is fairly slow-growing, but it provides a crop over a long period in the summer and autumn.”
forage.DK.foraging_months.year_round
false
AI estimatenot measured yet
ornamental.basis
documented
AI estimatenot measured yet
ornamental.fragrance.source
none
AI estimate100 % agree
ornamental.fragrance.intensity
subtle
AI estimatenot measured yet
ornamental.confidence
high
AI estimatenot measured yet
ornamental.fall_interest
false
AI estimatenot measured yet
ornamental.flower_colour
white“When gone to flower, its white blossoms resemble that of its cousin Matthiola incana or hoary stock.”
ornamental.evidence_quote
Cabbage (Brassica oleracea) typically produces yellow flowers. Its foliage is green to blue-green and it does not exhibit significant autumn foliage color change. It has a medium foliage texture. There is no notable fall interest or winter structure, and it is not known for fragrance.
AI estimatenot measured yet
ornamental.foliage_colour
blue_green“is a leafy vegetable with thick, flat, glossy blue-green leaves with thick stems”
ornamental.foliage_texture
medium“Wild Brassica oleracea is a tall biennial or perennial plant that forms a stout rosette of large leaves in its first year.”
Wikipediapartly
ornamental.winter_structure
none“In its second year, a woody spike grows up to 1.5 metres (5 ft) tall, from which branch off stems with long clusters of four-petaled yellow flowers.”
Wikipediapartly
ornamental.autumn_foliage_colour
none
AI estimatenot measured yet
care_regime
light
AI estimatenot measured yet
propagation.self_seeding
light
AI estimate20 % agree
propagation.establishment_years
0
AI estimate40 % agree
spatial_profile.canopy_density
dense
AI estimatenot measured yet
function_profile.biomass_return.confidence
high“A dynamic accumulator gathering minerals or nutrients from the soil and storing them in a more bioavailable form - used as fertilizer or to improve mulch.”
function_profile.nutrient_flows.consumes
[{"basis":"documented","demand":"high","nutrient":"nitrogen","confidence":"medium","evidence_quote":"The plant is tolerant of a variety of soil conditions between pH 6.0 and 7.5, but grows particularly well in alkalin…“The plant is tolerant of a variety of soil conditions between pH 6.0 and 7.5, but grows particularly well in alkaline soils in full sunlight, with good drainage and high amounts of nitrogen.”
function_profile.nutrient_flows.provides
[{"basis":"inferred","nutrient":"sulfur","mechanism":"biomass_return","confidence":"low"},{"basis":"inferred","nutrient":"calcium","mechanism":"biomass_return","confidence":"low"},{"basis":"inferred","nutrient":"potas…“A dynamic accumulator gathering minerals or nutrients from the soil and storing them in a more bioavailable form - used as fertilizer or to improve mulch.”
PFAFpartly
function_profile.biotic_interactions
[{"taxa":["bees"],"basis":"documented","valence":"beneficial","relation":"attracts","confidence":"high","evidence_quote":"The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.","org…“The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.”
function_profile.aromatic_pest_effect.value
false
AI estimate80 % agree
function_profile.aromatic_pest_effect.confidence
high
AI estimatenot measured yet
function_profile.structural_interfaces.provides_shelter.basis
inferred
AI estimatenot measured yet
function_profile.structural_interfaces.provides_shelter.confidence
low
AI estimatenot measured yet
function_profile.structural_interfaces.requires_shelter.basis
inferred
AI estimatenot measured yet
function_profile.structural_interfaces.requires_shelter.confidence
medium
AI estimatenot measured yet
function_profile.structural_interfaces.provides_physical_support.basis
inferred
AI estimatenot measured yet
function_profile.structural_interfaces.provides_physical_support.confidence
low
AI estimatenot measured yet
function_profile.structural_interfaces.requires_physical_support.basis
taxonomic
AI estimatenot measured yet
function_profile.structural_interfaces.requires_physical_support.confidence
high
AI estimatenot measured yet
climate_tolerance.photoperiod_response
long_day
AI estimatenot measured yet
soil_interactions.organic_matter_contribution
medium
AI estimatenot measured yet
component_metadata.growth_cycle
perennial“Brassica oleracea alboglabra is a PERENNIAL growing to 0.5 m (1ft 8in) at a fast rate.”
resource_interfaces.inputs
[{"resource":"light","quantity_description":"full sun"},{"resource":"shade","quantity_description":"tolerates semi-shade (light woodland) or no shade"},{"resource":"water","quantity_description":"moist soil"}]“An easily grown plant, it succeeds in full sun in a well-drained but moisture-retentive fertile preferably alkaline soil.”PFAF“It can grow in semi-shade (light woodland) or no shade.”PFAF“It prefers moist soil.”
resource_interfaces.outputs
[{"resource":"pollinator_services","quantity_description":"flowers pollinated by bees"},{"resource":"seeds","quantity_description":"seeds ripen July to September"}]“The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.”PFAF“It is in flower from May to August, and the seeds ripen from July to September.”