Hosta
'Krossa Regal'
Krossa Regal Hosta
Family |
Asparagaceae |
Genus |
Hosta |
Cultivar |
'Krossa Regal' |
Category |
Perennials |
USDA Hardiness Zone |
3 - 8 |
Canadian Hardiness Zone |
1 - 8 |
RHS Hardiness Zone |
H7 - H4 |
Temperature (°C) |
-40 - (-7) |
Temperature (°F) |
-40 - 20 |
Height |
60 cm |
Spread |
60 cm |
Landscape |
Excellent in flower borders and beds, although will take up a large section of the garden. |
Cultivation |
Grow in partial or full shade in any fertile soil that has been enriched with well-rotted organic manure. A pH of 6-7 is preferred, and a continuous supply of moisture is critical for optimum performance. |
Growth |
Fast |
Pests |
Slug resistant, but rabbits and deer may be a problem. |
Habitat |
Horticultural origin. |
Leaf Description |
Leaf blade measures 28 by 18 cm, having a smooth texture and soft-blue colour. |
Flower Description |
Flowers are bell-shaped and purple, and are particularly attractive to hummingbirds. |
Notable Specimens |
The A.M. Cuddy Gardens, Strathroy, Ontario, Canada. Royal Botanical Gardens, Burlington, Ontario, Canada. |
Propagation |
Propagate through division of clumps, although clumps should be left undisturbed for at least 3 years in order to allow the leaves to reach maturity. Plant in spring or (in areas with milder winters) autumn, allowing the roots to soak overnight in a weak solution of liquid fertilizer first. |