A Majestic Green Crown Jewel for Grand Landscapes
Hosta 'Domaine de Courson' is a sport of Hosta 'Sum and Substance'. Diane Grenfell registered it in 1996, and it remains one of the largest hostas available. It grows to 76 cm (30") tall and 152 cm (60") wide, with medium green, slightly shiny leaves that bring bold texture to any shaded garden. It suits Canadian zones 3–9 and works beautifully as a specimen or woodland anchor.
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Colossal Stature: Creates a grand, mound-like presence that anchors large woodland gardens or stands alone as a living sculpture.
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Waxy Sheen: Leaves reach 45 cm (18") long with a slightly shiny top and dull, waxy underside — sophisticated texture that holds up through summer heat.
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Subtle Floral Display: Tall, greyish green scapes carry bell-shaped, pale lavender to near-white flowers that hover elegantly above the massive foliage.
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Sun Tolerance: Inherits the celebrated vigour of 'Sum and Substance' and handles brighter light better than most hostas, adding versatility to Canadian garden exposures.
| Feature |
Specification |
| Size (H × W) |
76 cm × 152 cm (30" × 60") |
| Hardiness Zone |
3–9 |
| Colour |
Rich medium green |
| Light Requirements |
Filtered sun to full shade |
Grower's Tip: Given its enormous potential size, crown health is paramount. We monitor spring emergence at our Bécancour trial fields to confirm each plant shows the vigorous growth rate and characteristic leaf sheen of a True to Type 'Sum and Substance' offspring before it is cleared for shipping.
