Also known as
Large-Leaved Lupine, Blue Pod, Garden Lupin, Meadow Lupine, Russell Lupin, Washington Lupin, Altramuz Perenne, Bigleaf Lupine
Lupinus polyphyllus4 by KENPEI (CC-BY-SA-3.0)
This plant has no fragrance
More images of Lupin
The garden lupin is used in gardens for its attractive flowers, attracting bees and the nitrogen fixing ability of the plant. It can improve poor soils. Naturally, it grows along streams and creeks, preferring moist habitats. Lupins grown in gardens today are hybrids of crossing L. polyphyllus with L. arboreus, L. sulphureus and one or more annual species. The crossing resulted in plants with flower spikes that were denser, larger, and more colourful than the originals. These hybrids are known as Russel hybrids, named after the horticulturist who bred them.
Common problems with Lupin
Generally problem free, but aphids can be a problem. Encourage beneficial insects like lady bugs or spray with organic insecticide when beneficial insects are not around.
Lupin Companion Plants
Most vegetables and flowers benefit from lupine!
How to harvest Lupin
Flowers can be harvested for the vase and seed can be harvested to replant.
How to propagate Lupin
Sow seeds in autumn in damp soil or cold treated seeds in spring. To cold treat place seeds in a ziplock bag with slightly damp towel into a refrigerator for 7 days.
Cut a small stem down to trunk, including a bit of its connection to the trunk, set in moist, very well-drained, propagation medium. Keep covered opening a few minutes daily for airflow.
Special features of Lupin
Attracts useful insects
Attract insects including bees.
Use as soil conditioner to add Nitrogen to a depleted vegetable bed. It will fix Nitogen as plantfood to serve as nutrients in following (or neighbouring) crops.
Naturally occurring flowers are blue to purple. Hybrids are red, pink, white, blue, and multicoloured with different colours on different petals.
Other uses of Lupin
Border, cutting bed, wildflower/meadow. Suitable for coastal conditions.
Looking good in June - Top 10 flowers
Traditionally flowering in June, these flowers will be at their best this month.