xHeucherella Plant Named 'Plum Cascade'

Abstract

A new and distinct ×Heucherella plant substantially as shown and described, characterized by a trailing habit, a strongly lobed leaf, leaves than are purple silver in color, light pink flowers, and excellent vigor.

Claims

1. A new and distinct ×Heucherella plant as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 shows a close up of an eight-month-old ×Heucherella ‘Plum Cascade’ grown outdoors in the shade in a one gallon container in May in Canby, Oreg.

[0015] FIG. 2 shows a photo of one-year-old plants in the garden in part shade in early November in Canby, Oreg.

DETAILED PLANT DESCRIPTION

[0016] The following is a detailed description of the new ×Heucherella cultivar based on observations of eight-month-old specimens in August growing in one gallon containers outside in the shade 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. [0017] Plant: [0018] Form.—Basal rosette and trailing, herbaceous perennial. [0019] Hardiness.—USDA Zone 4 to 9. [0020] Size.—16 cm tall from top of the foliage to the soil and 64 cm wide. [0021] Habit.—Mounding and trailing. [0022] Vigor.—Excellent. [0023] Roots.—Fibrous, freely branching, fine, and white in color. [0024] Stem: [0025] Size.—Grows to 5 mm wide and 35 cm long. [0026] Internode length.—0.5 mm to 6 mm. [0027] Stem color.—Grey Brown 199B near base blending to Greyed Purple 187A near tips. [0028] Leaf: [0029] Type.—Simple. [0030] Arrangement.—Rosette and alternate. [0031] Shape.—Broadly ovate. [0032] Blade size.—Grows to 10 cm long and 9.5 cm wide. [0033] Lobing/division.—7 palmate main lobes with shallower secondary lobes, the terminal the longest. [0034] Venation.—Palmate, topside Greyed Purple N186B, bottom side closest to Purple N77A. [0035] Margins.—Crenate, undulation absent to weak. [0036] Apex.—Mucronulate. [0037] Base.—Cordate. [0038] Surface texture.—Glandular hairs on both sides. [0039] Petiole description.—Grows to 11 cm long on stem leaves and 14 cm long on rosette leaves and 2 mm wide, glandular hairs, Grey Brown 199B. [0040] Leaf color.—Spring topside Grey 201B tinted Purple 79A with the veins N186B, bottom side Purple N77A; summer topside Grey 201B tinted Purple 79A with the veins N186B later lightening to Grey 201B, bottom side Purple N77A; fall and winter leaves topside closest to Purple N77C with dark veins Greyed Purple N186B, bottom side closest to Greyed Purple 187A. [0041] Inflorescence: [0042] Size.—Grows to 2.5 cm wide and 12 cm long. [0043] Type.—Raceme. [0044] Attitude.—Upright to semi-upright. [0045] Number of flowers per raceme.—About 100. [0046] Density of flowers.—Medium. [0047] Number of racemes.—About 17. [0048] Peduncle.—Grows to 17 cm tall, 2 mm wide at base, Greyed Purple 187A, glandular hairs, sometimes with one to two side branches and 0 to two leaves (blades grow to 3 cm long and 2.5 cm wide, ovate, coarsely serrate, tip acute, base cordate, glandular hairs on both sides, topside Grey 201B tinted Purple 79A with the veins N186B, bottom side Purple N77A). [0049] Pedicel.—Grows to 1 mm long, with glandular hairs, Greyed Purple 187A. [0050] Bloom period.—May to September in Canby, Oreg. [0051] Flower bud: [0052] Size.—1.5 mm wide and 3 mm long. [0053] Description.—Glandular puberulent, ovoid. [0054] Color.—Red Purple 65A. [0055] Flower: [0056] Type.—Perfect. [0057] Shape.—Campanulate. [0058] Size.—5 mm deep and 4 mm wide. [0059] Attitude.—Outward to down-facing. [0060] Petal description.—5 in number, linear, 3 mm long, tip acuminate, base attenuate, margin entire, glabrous on top and bottom, Red Purple 62D on both sides. [0061] Calyx description.—4 mm deep and 4 mm wide, with 5 lobes, divided ½ way to the base, campanulate, glandular hairs on both sides, tip acute, margin entire, both sides Purple 79C (Red Purple 72D at base). [0062] Stamen description.—10 in number, filaments 3 mm long, White NN155C, anthers less than 1 mm, Greyed Orange N170A, pollen none. [0063] Pistil description.—One central two beaked pistil, 6 mm long, White NN155C tinted Purple 72B. [0064] Fragrance.—None. [0065] Lastingness.—Each raceme blooms for about 3 weeks on the plant. [0066] Fruit and seed: None. [0067] Disease and pest tolerance: The new cultivar is typical to the genus. No known resistances to pests or diseases. No problems have been found in Canby, Oreg.