Heuchera plant named ‘TNHEUNEP’

Abstract

A new and distinct Heuchera plant characterized by purple to silver colored leaves, medium size, slightly lobed, geranium-like leaves, light pink flowers, good sun and shade tolerance, a medium-large, mounding habit with excellent crown count, and excellent vigor.

Claims

1. A new and distinct Heuchera plant as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a six-month-old plant of Heuchera TNHEUNEP growing in a one gallon pot in full sun in August in Canby, Oreg.

DETAILED PLANT DESCRIPTION

(2) The following is a detailed description of the new Heuchera cultivar based on observations taken in October of nine-month-old specimens growing in the trial field in Canby, Oreg. Canby is Zone 8 on the USDA Hardiness map. Temperatures range from a high of 95 F. in August to an average of 32 F. in January. Normal rainfall in Canby is 42.8 inches per year. The color descriptions are all based on The Royal Horticultural Society Colour Chart, 5.sup.th edition, 2007. Plant: Form.Basal rosette, herbaceous perennial. Hardiness.USDA Zone 3 to 9. Size.69 cm tall from ground to foliage, up to 79 cm tall from top of inflorescences to the ground, 63 cm wide. Number of crowns.About 10. Habit.Medium-large, mounding. Vigor.Excellent. Leaf: Type.Simple. Arrangement.Rosette. Shape.Broadly ovate to orbicular. Number.About 200. Blade size.Grows to 14 cm long and 12 cm wide. Venation.Palmate. Lobing/division.7 shallow palmate lobes. Margins.Crenate, slightly undulate. Apex.Mucronulate. Base.Cordate, strongly overlapping and often spiraling in. Surface texture.Glandular-puberulent on both sides. Leaf rugosity.Absent. Petiole description.Grows to 19 cm long and 3.5 mm wide, glandular hairs, Greyed Purple 187A. Leaf color.New leaves; top side closest to Greyed Purple N186D with veins Greyed Purple N186A, bottom side between Greyed Purple 187A and Greyed Purple 187B with veins Greyed Purple 187A, mature leaves; top side closest to Purple N79B, veil closest to Blue Green 124D with veins Violet Blue N92A, bottom side between Greyed Purple N186C and Greyed Purple N186D with veins Greyed Purple 187D. Inflorescence: Size.Grows to 10.5 cm wide and 25.5 cm long. Type.Thyrse, strong, upright. Number of thyrse.About 17. Number of flowers per thyrse.About 120. Peduncle.Grows to 34.5 cm long and 3 mm wide at base, glandular hairs, Greyed Purple 187A. Pedicel.Grows to 4 mm long, 0.5 mm in diameter, with glandular hairs, Greyed Purple 187A. Bloom period.Late May to late October in Canby, Oreg. Flower bud: Size.5 mm wide and 7 mm long. Description.Glandular puberulent, ovoid, down facing. Color.Greyed Purple 187A at the base blending to Greyed Purple 187C in the middle and Red Purple 62D at tip. Flower: Type.Perfect. Shape.Campanulate. Lastingness.30 to 45 days. Attitude.Down and side-facing. Size.7 mm long and 4.5 mm wide. Corolla description.5 petals, each 2.5 mm long and 1 mm wide at base for 0.5 mm, expanding to 2 mm wide near tip for 2 mm, spatulate, margins entire, tip acute, glandular-puberulent on outside, glabrous on inside, outside White N155A with vertical streak through the center, 0.5 mm long, Greyed Purple 186B, inside White NN155C. Calyx description.Campanulate, 4 mm long and 3 mm wide, with 5 lobes with narrow sinuses divided way to the base, each 2 mm wide and 2.5 mm long, oblong in shape, back side glandular-puberulent with glandular hairs (Greyed Purple 187A), glabrous inside, tip obtuse, margin entire, inside White NN155C, tinted Red Purple 62D on back side, strongest at base. Stamen description.5 in number, filaments 1.5 mm long, White NN155C, anthers 0.5 mm long, Greyed Orange 167B, pollen none seen. Pistil description.1, 2-beaked, 8 mm long and 2 mm wide, White 155D overall, ovary 4 mm long and 2 mm wide, style 4 mm long, stigma bulbous in shape, 0.5 mm in diameter, closest to White 155C. Fragrance.None. Lastingness.Each thyrse blooms for about 3 weeks on the plant. Fruit and seed: None. Pest and disease tolerance: The new cultivar is typical to the genus. No known resistances to pests or diseases. No problems have been found in Canby, Oreg.