Lupinus perennis
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Hardiness Zone: 3-8 Height: 0.5-2 feet; 0.15-0.6 metres Spread: 0.5-1 foot; 0.15-0.3 metres Sun: Full sun to part shade Water: Dry to moist Wildlife: Attractive to deer, birds, butterflies, and small mammals. Bloom Description: Spike like cluster up to 8” long. Bloom Colour: Blue, purple Culture: Root system can fix nitrogen into soil. Seeds should be scarified to assist with germination. Noteworthy Characteristics: Ontario’s only native lupine. The only plant host of the Karner Blue butterfly caterpillar. Important to note that the seeds are toxic if eaten in large quantities. Garden Uses: Ideal for garden borders.