Yellow Tree Lupin

Yellow Tree Lupin is a spectacular and resilient perennial that forms a woody evergreen shrub covered in clouds of vivid yellow blooms. The sweet-scented, pea-like flowers rise up on tall spikes and are a magnet for bees and other pollinators throughout the flowering season. This drought-tolerant plant is ideal for xeriscaping, pollinator gardens, and adding architectural beauty to the landscape. It also performs well as a cut flower, offering a long vase life and a lovely fragrance.

Where Can You Grow Yellow Tree Lupin?
Best suited for Zones 5-9 in full sun with well-drained, moderately fertile soil. This plant thrives in coastal climates and dry gardens once established, making it a great choice for borders, wildflower gardens, and sunny slopes.

History and Historical Uses
Native to western North America, Yellow Tree Lupin (Lupinus arboreus) was traditionally used to stabilise sandy soils and support pollinator populations. Valued in both ornamental and ecological landscapes, it fixes nitrogen in the soil and supports biodiversity through its extended bloom period and nectar-rich flowers.

Canadian Zone Information
Zones 8-9: Direct seed in autumn or early spring for best germination; thrives with minimal care.
Zones 5-7: Start indoors 4-6 weeks before last frost or direct sow in spring; mulch in winter for extra protection.
Zones 3-4: May overwinter in protected locations but typically grown as a flowering shrub in warm microclimates.

How to Grow and Harvest Yellow Tree Lupin
Planting: Scarify seeds before sowing. Sow 1-2cm (0.5in) deep in well-drained soil. Space plants 60-90cm (24-36in) apart.
Watering: Water regularly until established; drought tolerant afterward.
Harvesting: Flowers can be cut in early bloom for long-lasting arrangements.
Maintenance: Prune lightly after flowering to shape and encourage bushiness.

Seed Saving Tips for Future Supply
Select Mature Pods: Allow seed pods to dry fully on the plant before harvesting.
Collect Seeds: Carefully remove pods and extract seeds.
Dry and Store: Ensure seeds are completely dry and store in a cool, dark place.
Viability: Seeds remain viable for 3-5 years under proper conditions.

Certified Organic By
Islands Organics Producers Association (Cert#1962)