<i>Sedum </i>plant named ‘Night Light’

Abstract

A new and distinct ornamental perennial Sedum plant named ‘Night Light’ is characterized by tight-forming rounded mounds with dark olive-green leaves with greyed-purple glaucous foliage that resists powdery mildew and subsequent scaring. The numerous, wine-colored stems are highly branched and resist lodging in summer heat and rains. Individual flowers of open light-yellow and mature to pink with deep-rose carpels nearly completely covering the top of the plant. The new plant is useful for the landscape in containers, as specimens or en masse.

Claims

1. A new and distinct perennial Sedum plant named ‘Night Light’ as herein described and illustrated.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The photograph of the new plant demonstrates the unique traits and the overall appearance of Sedum ‘Night Light’. The colors are as accurate as reasonably possible with color reproductions of this type. Variations in ambient light spectrum, source and direction may cause the appearance of minor variation in color. The plants used in the photograph were four-year-old plants grown in an open, full-sun trial garden at a wholesale perennial nursery in Zeeland, Mich. with supplemental water and fertilizer when needed. No plant growth regulators or pinching have been used.

(2) FIG. 1 shows a close-up of the flowers and buds of the new plant in mid-summer.

(3) FIG. 2 shows the habit of the new plant with foliage in early stages of flowering.

DETAILED BOTANICAL DESCRIPTION

(4) The following is a detailed description of four-year-old plants of the new cultivar as grown outdoors in a full sun trial plot at a wholesale nursery in Zeeland, Mich. No plant growth regulators have been used. Plants of the new cultivar have not been tested under all possible conditions. The phenotype may vary with changes in environment, climate, and cultural conditions without change however in the genotype. The color reference is in accordance with the 2015 edition of The Royal Horticultural Society Colour Chart except where general color dictionary terms are used. Botanical designation: Sedum hybrid; Cultivar denomination: ‘Night Light’; Parentage: The female parent is an unnamed proprietary hybrid known only by the breeder code 12-66-08; the male parent is unnamed, but may have been any one of a number of other siblings in the isolation block hybridizing area; Asexual propagation: Stem tip cuttings and division; Time to initiate roots: About two weeks; Time to finish a 3.8 liter flowering container: About three months in the summer from a rooted 2.5 cm plug; Root description: Thick, fleshy; freely branching; creamy white to light tan in color; Plant habit: Winter-hardy herbaceous perennial; upright mound; stiff upright stems; dense and full, not opening in center later in the season; flower heads freely branching; Growth rate: Moderately vigorous; Plant size: About 49.0 cm tall and 74.0 cm wide in full flower; Stems: Terete; glaucous; glabrous; diameter at base to about 16.0 mm, average about 12.0 mm; heavily branched in distal portion; about 15.0 cm long from base to initial branches; about 9 stems per plant and 10 branches per stem; Stem color: Proximally or in shade nearest RHS 147C, distally nearest RHS N186C, with full glaucous coating nearest RHS N187B; Lateral branches: To about 10 per stem; glaucous; glabrous; terete; primary branches to about 25.0 cm long and about 6.0 mm diameter at base; Lateral branch color: Nearest RHS N186C; Foliage: Ovate; spirally arranged; simple; smooth; sarcous; glabrous and glaucous on both surfaces; sessile; thick; apex bluntly acute to rounded; base attenuate; margin irregularly and shallowly dentate, 8 to 14 teeth; teeth about 1.0 mm, to 1.5 mm apart; decreasing in size distally; attitude outward; about 34 per stem; Foliage size: To about 8.5 cm long, 5.4 cm across and 4.0 mm thick at midrib; average about 5.2 cm long, 3.1 cm across and 2.6 mm thick; decreasing distally; Foliage color: Adaxial young between RHS N187C and RHS 189B, abaxial young nearest RHS 189B; mature adaxial nearest RHS N187A and abaxial between RHS 191A and RHS N138C variably blushed with nearest RHS N187A; Petiole: Leaves sessile; Venation: Palmate, barely distinguishable; slightly raised abaxial; Vein color: Adaxial midrib nearest RHS N187A and abaxial midrib between RHS 191B and RHS N138C; secondary veins not obvious; Flower: Stellate, actinomophic; perfect; complete; pentamerous; persistent; attitude upright to outwardly in terminal compound cymes; size about 6.0 mm across at petal apices and 5.0 mm tall; Flower number: About 150 to 200 per branch and 1,000 to 1,700 flowers per stem and 8,000 to 15,000 per plant; Fragrance: None detected; Flowering season: Beginning mid-summer in Zeeland, Mich. for about three weeks; Longevity: Flower cymes remain effective for about three weeks on the plant and one week as cut flowers; individual flowers and calyces persistent and effective for about two weeks; Flower buds about one day prior to opening: Ellipsoidal; apex acute; base truncate; about 4.0 mm long and about 3.0 mm diameter near middle; Flower bud color: Exposed petals nearest RHS 11D with distal midrib nearest RHS 145C; calyx nearest RHS N138B; Inflorescence: To about 22.0 cm tall from first branch and about 36.0 cm across; up to about 1,500 flowers per inflorescence; Petals: Typically five; broadly-lanceolate; acute apex; base truncate and fused; margin entire; glabrous abaxial and adaxial; about 5.0 mm long and about 2.3 mm across at middle; Petal color: Upon opening adaxial nearest RHS NN155B proximally and RHS 145D distally, upon opening abaxial nearest RHS NN155B proximally and RHS 145B distally; adaxial maturing to between RHS 158A and RHS 158B distally and proximally nearest RHS 158D; abaxial maturing to between RHS 158A and RHS 158B distally and proximally nearest RHS 158D; Calyx: With five sepals; campanulate to stellate; about 4.0 mm across and 3.0 mm deep; Sepals: Linear to lanceolate; narrowly acute apex; fused base; entire margin; glabrous and slightly glaucous both abaxial; adpressed to petals, about 2.0 mm long beyond fusion and about 1.5 mm across at fusion; Sepal color: Nearest RHS N138B; Peduncles: Terete; glaucous, glabrous, becoming lustrous; stiff and flexible; freely branching; mostly upwardly to slightly outwardly; with branches to about 45° from perpendicular; to about 20.0 cm long and 5.0 mm diameter; Peduncle color: Nearest RHS 146C, and with exposure to high ultraviolet light nearest RHS N186C where bloom washed or rubbed away and nearest RHS N186B with bloom remaining; Pedicels: Cylindrical; glabrous; glaucous, becoming lustrous; strong and stiff, yet flexible; to about 4.0 mm long and 0.7 mm diameter; average about 3.0 mm long and 0.5 mm diameter; Pedicel color: Blend between RHS N138B and with a slight blush of nearest RHS N186C; Androecium: Typically five stamens, rarely with five additional undeveloped; Filaments.—Cylindrical; upwardly; free, not adnate inner corolla; about 2.0 mm long and about 0.3 mm diameter; color translucent to nearest RHS NN155D. Anthers.—Basifixed; longitudinal; ellipsoidal; about 0.7 mm long and 0.6 mm across; color nearest RHS 10B. Pollen.—Moderate in quantity; color nearest RHS 8D. Gynoecium: Typically five; cylindrical, conic in distal one third; to about 5.0 mm long and 1.5 mm diameter; Style.—Terete conical; tapering distally with base truncate; about 1.0 mm long and 0.5 mm diameter at point of attachment to ovary; glabrous; lustrous; color initially upon opening nearest RHS 145B, progressing to nearest RHS 59B at maturity. Stigma.—Minute, acute; about 0.2 mm diameter and 0.2 mm long; color initially upon opening nearest RHS 158D, progressing to nearest RHS 59B at maturity. Ovary.—Conical; acutely tapering at apex to style; base truncate; lustrous; about 4.0 mm long and 1.5 mm diameter; color initially upon opening nearest RHS 160C, progressing to nearest RHS 160D proximally and nearest RHS 59B distally at maturity, with petals marcescent nearest RHS 46A distally and nearest RHS 160D proximally. Fruit: Ventrally dehiscent follicle; about 3.5 mm long and 3.2 mm across; color at maturity nearest RHS 177A; Seed: Sparse; fine; lanceolate; about 1.0 mm long and less than 0.2 mm across; color between RHS 165A and RHS 165B; Growing conditions: Plants of the new Sedum ‘Night Light’ is xeromorphic and grow best with good drainage, full sun and moderate to low fertility. ‘Night Light’ tolerates heavy rains and wind and is not prone to develop an open center later in the season as many other Sedum cultivars do that are known to the inventor. Hardiness: The new plant is cold hardy from USDA zones 3 to 9 and has tolerated temperatures of at least 35 degrees C. Disease and pest resistance: Other pest and disease resistance and tolerance outside that normal for Sedum is not known.