This favourite June/July blooming perennial is valued for its tall, colourful spikes of yellow. Requires moist soils in full sun to light shade.
This favourite June/July blooming perennial is valued for its tall, colourful spikes of yellow flowers. Requires moist soils in full sun to light shade. Height 60-90 cm (24-36"). Hardy to Zone 5.
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How To Grow
45-50 seeds/gram. A somewhat finicky perennial to start, it requires a cooler temperature of 16 C (60 F) for germination (which normally requires about 20 days). Soak seed for 24 hours prior to sowing indoors 6 to 8 weeks before last frost date. After germination, grow on under lights at the same temperature before hardening off and transplanting to the garden in a sunny site. Direct garden seeding can also be done late in the fall.
Blooming Season Begins
Start Indoors or Sow Direct in Spring or Fall
Days to Emergence
15 to 25
Medium Tall %2860 to 90 cm%29%2824 to 36%22%29
Degree of Difficulty
Prior Experience Beneficial
Lupinus polyphyllus x hybrid
Massing in sunny sites.