A Hazy Horizon of Vertical Blue
Hosta 'Smoke Signals' is an elite, upright introduction from the respected breeding program of Bev and Dave Stegeman, celebrated for its unique architectural form and "smoky" aesthetic. This medium-to-large cultivar stands out in the Canadian landscape with its narrow, wedge-shaped leaves that point skyward like a signal fire from the centre of the plant. The foliage is draped in a thick, glaucous wax that gives it a sophisticated, dusty blue-grey appearance, reminiscent of a misty morning in the St. Lawrence Valley. As the season matures, the blue holds its ground remarkably well, providing a cool, calming vertical accent that contrasts beautifully with low-mounding gold or chartreuse companions.
Why It Stands Out
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Distinctly Upright Habit: A "vased" silhouette that adds much-needed height and structure to crowded shade borders.
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Smoky Blue Finish: Features an exceptionally heavy waxy bloom that creates a soft, matte blue-grey colour rarely seen in broader varieties.
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Wedge-Shaped Foliage: Long, narrow leaves with a refined point that draw the eye upward and keep the garden looking organized.
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Elite Slug Resistance: The thick, leathery leaf substance inherited from its sieboldiana heritage makes it a tough target for pests.
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Lavender Summer Spikes: Produces elegant, near-white flowers on tall, sturdy scapes that mirror the plant's vertical energy.
Technical Specs
| Feature |
Details |
| Size |
45–55 cm Height / 70–100 cm Width |
| Hardiness Zone |
Canadian Zones 3–9 |
| Colour |
Smoky Blue-Grey; Near-white flowers |
| Light |
Partial Shade to Full Shade |
Grower's Tip
To maintain the dignified blue-grey colour of 'Smoke Signals', we recommend planting it in a location with filtered light or afternoon shade, which protects the waxy coating from the summer heat. At our nursery in Bécancour, QC, we wait for that specific smoky-blue emergence and the characteristic upright wedge shape to confirm each plant is True to Type. We never ship a dormant crown; our process ensures you receive a vigorous, verified Stegeman introduction that has already proven its strength in our cool northern climate.
