H. ‘Mad About Blue’

AI-generated watercolor illustration of Hosta 'Mad About Blue' (not a photograph)
AI-generated watercolor illustration by The Hosta Farm — not a photograph of this cultivar. How we use images

Hosta ‘Mad About Blue’ is a registered cultivar () .

Year registered2009
Section classIII-2 (Medium)

Overview

Registered in 2009, 'Mad About Blue' is a medium-sized hosta cultivar derived from a cross between Hosta 'Frances Williams' (pod parent) and (Hosta 'Marilyn' × Hosta 'Tardiflora') (pollen parent). The cultivar is distinguished by its intensely blue-green, broadly ovate leaves with flat margins, a glaucous bloom on both surfaces, and moderate waviness with light corrugation.

In the Garden

'Mad About Blue' forms a slow-growing, mound-like clump reaching 16 inches (40.6 cm) in height and 39 inches (99.1 cm) in diameter. It performs best in partial to full shade, typical of most blue-leaved hostas, where the glaucous bloom responsible for its blue coloration is best preserved. Its medium size and rounded habit make it suitable for mid-border positions or as a specimen in shaded woodland gardens, pairing well with ferns, heucheras, and other shade-tolerant perennials.

Care Notes

Provide consistent moisture during the growing season, applying a balanced, slow-release fertilizer in early spring as new shoots emerge. As with most hostas, monitor for slug and deer damage, particularly on the tender new foliage in spring, and maintain good air circulation to reduce foliar disease risk.

This summary was generated with AI from the registry record and has not been reviewed yet; the registry data on this page is the reference. How we use AI.

Size and leaf

Clump height16 in (40.6 cm)
Clump width39 in (99.1 cm)
Leaf length8 in (20.3 cm)
Leaf width5.5 in (14 cm)
Vein pairs11
Leafintensely blue-green flat margins; glaucous bloom on top; glaucous bloom underneath; moderately wavy, lightly corrugated
Flower scape height22 in (55.9 cm)
Seasonal colour changedark green by August 15

From the American Hosta Society Registry record.

Parentage

Similar cultivars

Other registered hostas in the same AHS section class (III-2, medium size):

Related guides

Registration data: AHS Registry #3582. How we check this data.