H. ‘Jurassic Park’

Overview

Registered in 2006 as a seedling of two unrecorded parent plants, Hosta 'Jurassic Park' is a giant cultivar distinguished by its exceptional dimensions and rapid growth rate. Mature clumps reach 108 inches (274.3 cm) in diameter and 40 inches (101.6 cm) in height, forming a dense, mound-like habit. The leaves are broadly ovate with cordate bases, measuring 17 inches (43.2 cm) long by 15 inches (38.1 cm) wide, and exhibit a blue-green coloration with a heavy glaucous bloom on the upper surface and a dull underside. Each leaf bears 17 pairs of veins and is deeply corrugated (rugose), with dark green, flat margins and substantial substance that resists tearing.

In the Garden

Hosta 'Jurassic Park' is best sited in partial to full shade, where its blue-green foliage and pronounced rugosity are most pronounced. The mammoth spread—up to 9 feet (2.7 m) at maturity—requires generous spacing from neighboring plants; it is not suitable for containers. Companion plants should include shade-tolerant perennials with contrasting textures, such as ferns, Heuchera (coral bells), or Astilbe, which complement the hosta's bold, corrugated leaves without competing for space. The mound-forming habit and fast growth make it an effective groundcover for large woodland gardens or as a specimen in deep shade beds.

Care Notes

Provide consistent moisture during establishment and in dry periods, as the large leaves transpire heavily. Fertilize lightly in early spring with a balanced, slow-release formulation; excessive nitrogen may reduce leaf substance. Slugs and deer may feed on the foliage, though the thick, corrugated leaves offer moderate resistance compared to thinner-leaved cultivars. Hardiness is typical for the genus (USDA zones 3–8), but protection from strong winds is advisable to prevent leaf tattering.