Lupin
Lupinus polyphyllus
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Description
Lupinus polyphyllus, commonly known as the Large-leaved Lupine, is a perennial herbaceous plant native to western North America. It is renowned for its tall, striking flower spikes that come in a variety of colors including blue, purple, pink, and white. In agroecology and regenerative agriculture, Lupinus polyphyllus plays a crucial role as a nitrogen-fixing plant, enhancing soil fertility and supporting the growth of surrounding plants. It is often used in natural farming systems to enhance biodiversity, attract pollinators, and as a cover crop to prevent soil erosion. In a food forest, it serves as a ground cover layer, providing habitat for beneficial insects and contributing to the overall health of the ecosystem. Historically, lupines have been used by indigenous peoples for their soil-enhancing properties and as a source of dye.
Growing Details
Lupinus polyphyllus thrives in well-drained, slightly acidic to neutral soils with full sun exposure. Before planting, prepare the soil by incorporating organic matter such as compost to improve fertility and structure. Scarify seeds before sowing to enhance germination rates. Mulching around the base of the plant helps retain moisture and suppress weeds. Companion plants like yarrow and clover can be beneficial, as they attract pollinators and further enhance soil health. Avoid overwatering, as
Tags
Nitrogen Fixing
Carbon Farming
Attracts Wildlife
Erosion Preventing
Bee Friendly
Invasive
Meadow
Visual Appeal
Easy Propagating
Colouring
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Lupinus polyphyllus</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to western North America
applicable geo region: North America
language used: en
Flowering:
beginning
of May for 60 days
Harvest:
beginning
of July for 30 days
Seed Start:
beginning
of March
Indoor Start:
beginning
of March
Transplant:
beginning
of May
Uses & Benefits
Edible Rating:
(1/5)
edible uses: Seeds can be consumed after proper processing to remove alkaloids, but they are not commonly used for food due to potential toxicity. They must be soaked and boiled multiple times to ensure safety.
Medicinal Rating:
(0/5)
medicinal uses:
health concerns: Seeds contain alkaloids that can be toxic if not properly processed. Consumption without proper preparation can lead to lupin poisoning.
other uses: Lupinus polyphyllus is used as a green manure and for soil improvement due to its nitrogen-fixing capabilities. It also serves as an ornamental plant due to its vibrant flowers.
Scientific Literature
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Botanical data
specie: Lupinus polyphyllus
common names: Large-leaved Lupine; Garden Lupin; Blue Lupin
family: Fabaceae
sub family: Faboideae
tribe: Genisteae
sub tribe:
genus: Lupinus
Growing Conditions
area needed: 0.5 m
spacing: 0.5 m
growing difficulty: Low
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 20ยฐC / 15ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 20ยฐC / 5ยฐC / 30ยฐC
water demands: Medium
humidity:
light demands: High
root type: Medium
frost tender: Medium
hardness:
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(5/10)
first harvest: 0 years
life span: 5 years
succession: Pioneer
growth rate: Medium
max height: 1.5 m
max width: 0.5 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Lupinus polyphyllus thrives in well-drained, slightly acidic to neutral soils with full sun exposure. Before planting, prepare the soil by incorporating organic matter such as compost to improve fertility and structure. Scarify seeds before sowing to enhance germination rates. Mulching around the base of the plant helps retain moisture and suppress weeds. Companion plants like yarrow and clover can be beneficial, as they attract pollinators and further enhance soil health. Avoid overwatering, as
Potential Disturbances: Aphids and slugs can occasionally present challenges. Introduce beneficial insects such as ladybugs and lacewings to manage aphid populations. Use organic slug traps or barriers to protect young plants. Companion planting with garlic or chives can help deter disturbances naturally. Neem oil can be used as an organic treatment.
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