Hosta ‘Krossa Regal’


  • © RIck Peterson / Great Plant Picks

  • © Richie Steffen / Great Plant Picks

  • © Richie Steffen / Great Plant Picks

Outstanding Qualities

This stately large hosta has a unique and distinctive upright mounding form. The rigid blue leaves have a wonderful architectural quality that makes if easy to use in the garden. Tall graceful flower stems that reach as high as 5 feet are topped with spikes of trumpet-shaped lavender blooms. Although no hosta is immune to slugs this one does show some resistance, especially once the foliage matures.

Quick Facts

Plant Type: mounding perennial

Foliage Type: deciduous

Plant Height: 1 ft. 6 in. (0.46 meters)

Plant Width/Spread: 3 ft. 0 in. (0.91 meters)

Hardiness: USDA Zones 3 to 9

Flower Color: lavender

Sun/Light Exposure: full sun, light to open shade

Water Requirements: regular watering

Seasonal Interest: This hosta has great blue foliage from late spring through to early fall. In summer tall flower spikes bear lavender blooms.

Wildlife Associations: bees, hummingbirds

Resistant to: slug

Colors & Combos

Great Plant Combinations: Hakonechloa macra ‘All Gold’, Osmanthus heterophyllus ‘Goshiki’, Polystichum munitum, Primula japonica, Tricyrtis ‘Togen’

Great Color Contrasts: burgundy, chartreuse, white, yellow

Great Color Partners: pink, purple, silver

Culture Notes
Most hostas prefer a location in light to open shade. ‘Krossa Regal’ will tolerate full sun and has better blue foliage with as least some direct sun. Plant it in a location with rich moist to well-drained soils. Most hostas will tolerate sandy sites as well as clay. This hosta resents drying out. During dry weather provide regular watering, especially in sandy soils. Hot locations should be avoided. Flowers can be removed once the blooms have faded and the foliage can be cut to the ground in fall.
Geek Notes
This cultivar was originally imported from Japan in the mid-1960’s where it is known under the name “Ginba Giboshi”