H. ‘T Rex’

Hosta ‘T Rex’ is a registered cultivar () .

Year registered1999
Section classI-1 (Giant)

Overview

Registered in 1999, *Hosta* 'T Rex' is a giant, mound-forming variegated cultivar resulting from a cross between *H. montana macrophylla* and *H.* 'Big John'. It is distinguished by its exceptionally large leaves—up to 18 inches long and 14 inches wide—with medium green margins and a dull surface on both sides, borne on a plant that can reach 80 inches in diameter.

In the Garden

'T Rex' is best suited to partial to full shade, where its substantial foliage can develop without scorching. At maturity, it forms a massive mound 30 inches tall and over 6.5 feet wide, making it an effective specimen or background plant in large borders and woodland gardens. Its moderate growth rate means it will fill space gradually; companion plants should be chosen to complement its scale, such as ferns, *Rodgersia*, or other large-leaved perennials.

Care Notes

Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. While slug and deer resistance is not absolute, the thick, heavy leaves are less appealing to slugs than those of many smaller hostas; standard precautions may still be warranted in high-pressure areas.

Size and leaf

Clump height30 in (76.2 cm)
Clump width80 in (203.2 cm)
Leaf length18 in (45.7 cm)
Leaf width14 in (35.6 cm)
Vein pairs12
Leafdull on top; dull underneath
Flower scape height34–38 in (86.4–96.5 cm)

From the American Hosta Society Registry record.

Parentage

  • Pod parent: H. montana macrophylla
  • Pollen parent: H. 'Big John' — H. ‘Big John’

Registered cultivars that list Hosta ‘T Rex’ as a parent:

Similar cultivars

Other registered hostas in the same AHS section class (I-1, giant size):

Related guides

Registration data: AHS Registry #5599