Generated on November 28, 2025 at 6:41 PM
{
"scientific_name": "Allium 'Millennium'",
"common_names": [
"allium 'Millennium'"
],
"family": "Amaryllidaceae",
"height_cm": "10-50",
"spread_cm": "10-50",
"height_cm_extracted": "40",
"spread_cm_extracted": "5",
"hardiness_zone": "H6",
"sun_exposure": "Full sun",
"soil_type": "Chalk, Clay, Sand",
"moisture": "Well-drained",
"soil_ph": "Acid, Alkaline, Neutral",
"foliage_type": "Deciduous",
"aspect": "South-facing, West-facing",
"seasonal_interest": "Spring, Summer, Autumn",
"habit": "Clump-forming",
"plant_type": "Bulb",
"time_to_maturity": "2-5 years",
"suggested_uses": [
"Beds and borders",
"Cottage\/Informal",
"Flower arranging",
"Ground cover",
"Underplanting"
],
"garden_uses": [
"Ground cover",
"City and courtyard gardens"
],
"fragrant": "Yes",
"pollinator_friendly": "Yes",
"low_maintenance": "No",
"drought_tolerant": "No",
"seasonal_colours": {
"Spring": {
"months": [
"Mar",
"Apr",
"May"
],
"Foliage": [
"Green"
]
},
"Summer": {
"months": [
"Jun",
"Jul",
"Aug"
],
"Foliage": [
"Green"
],
"Flower": [
"Pink"
]
},
"Autumn": {
"months": [
"Sep",
"Oct",
"Nov"
],
"Foliage": [
"Green"
]
},
"Winter": {
"months": [
"Dec",
"Jan",
"Feb"
]
}
},
"flowering_months": [
"Jun",
"Jul",
"Aug"
],
"flower_colour": [
"Pink"
],
"cultivation": "Grow in reasonably fertile, well-drained soil with full sun. The leaves generally die down before the flowers open. See allium cultivation advice",
"pruning": "No pruning required, other than to remove old flowered stems and foliage",
"propagation": "Propagate by division or propagate by offsets which can be carefully detached by lifting the bulb after flowering has finished. See bulb propagation",
"pests": "May be susceptible to allium leaf miner and onion fly",
"diseases": "May be susceptible to onion white rot, and onion downy mildew",
"description": "Clump-forming bulbous perennial to 40cm tall, with thick, narrow mid-green leaves, and pompoms of rose-pink, star-shaped flowers to 5cm across on upright stems, in mid-to late summer",
"rhs_url": "https:\/\/www.rhs.org.uk\/plants\/315303\/allium-millennium\/details",
"rhs_image_url": "https:\/\/apps.rhs.org.uk\/plantselectorimages\/detail\/Web_Use-_KOT0910_13177.jpg",
"rhs_image_copyright": "RHS \/ Joanna Kossak",
"_field_sources": {
"scientific_name": "RHS",
"common_names": "RHS",
"family": "RHS",
"height_cm": "RHS",
"spread_cm": "RHS",
"height_cm_extracted": "RHS",
"spread_cm_extracted": "RHS",
"hardiness_zone": "RHS",
"sun_exposure": "RHS",
"soil_type": "RHS",
"moisture": "RHS",
"soil_ph": "RHS",
"foliage_type": "RHS",
"aspect": "RHS",
"seasonal_interest": "RHS",
"habit": "RHS",
"plant_type": "RHS",
"time_to_maturity": "RHS",
"suggested_uses": "RHS",
"garden_uses": "RHS",
"fragrant": "RHS",
"pollinator_friendly": "RHS",
"low_maintenance": "RHS",
"drought_tolerant": "RHS",
"seasonal_colours": "RHS",
"flowering_months": "RHS",
"flower_colour": "RHS",
"cultivation": "RHS",
"pruning": "RHS",
"propagation": "RHS",
"pests": "RHS",
"diseases": "RHS",
"description": "RHS",
"rhs_url": "RHS",
"rhs_image_url": "RHS",
"rhs_image_copyright": "RHS"
}
}