x <i>mangave </i>plant named ‘Black Magic’

Abstract

A new and unique X Mangave plant named ‘Black Magic’ characterized by compact habit of lanceolate foliage with near-black color in strong ultraviolet light exposure. The new plant has numerous bronze flowers on dense, tall, stiff, highly-branched scapes. The foliage has small, flexible, marginal teeth and flexible to semi-flexible terminal mucro. The new plant is suitable as a potted houseplant plant, as a container plant for the patio or garden and for the garden or planted in the landscape, and the flowers are loaded with nectar for attracting hummingbirds.

Claims

1. A new and distinct cultivar of ornamental X Mangave plant named ‘Black Magic’ as herein described and illustrated.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The photograph of the new plant demonstrates the overall appearance of the new plant including the unique traits as a three-year-old plant grown in a full-sun trial garden with supplemental water and fertilizer as needed. The colors are as accurate as reasonably possible with color reproductions. Ambient light spectrum, temperature, source and direction may cause the appearance of minor variation in color.

(2) FIG. 1 shows the new plant from above with developing scape.

(3) FIG. 2 shows a close-up of the foliage and marginal teeth.

(4) FIG. 3 shows a close-up of the flowers and buds in the upper scape.

DETAILED BOTANICAL DESCRIPTION

(5) The following descriptions and color references are based on the 2015 edition of The Royal Horticultural Society Colour Chart except where common dictionary terms are used. The new plant, X Mangave ‘Black Magic’, has not been observed under all possible environments. The phenotype may vary slightly with different environmental conditions, such as temperature, light, fertility, moisture and maturity levels, but without any change in the genotype. The following observations and size descriptions are of two and three-year old plants in a commercial wholesale greenhouse and also in a full-sun trial garden in Zeeland, Mich. with supplemental water and fertilizer as needed. Botanical classification: x Mangave hybrid (Manfreda x Agave); Parentage: ‘Moonglow’ as the female or seed parent and 12-11-2 as the male or pollen parent; Propagation: Division and sterile plant tissue culture; Time to initiate roots from tissue culture: About 21 days; Growth rate: Moderate to rapid; Crop time: About 12 to 16 weeks to finish during lengthening spring days from an established 25 mm tissue culture plug to a 65 mm diameter container; Rooting habit: Fleshy, lightly branching, with roots up to 30 cm long; Root color: Nearest RHS 158C depending on soil type; Plant shape and habit: Succulent herbaceous perennial with basal rosettes of up to about 76 fleshy leaves radially emerging and arching from central rhizome, producing a symmetrical, low, rounded mound; Plant size: Foliage height about 19.0 cm tall from soil line to the top of the leaves and 60.0 cm wide at soil level, scape to about 140.0 cm tall and flowering in upper about 66.0 cm tall and 20.0 cm wide at the widest flowers; Foliage description: Lanceolate; simple; sarcous; fibrous; glabrous, slightly asperous and glaucous adaxial and abaxial; margins finely dentate with flexible teeth; apex acute with sharp flexible to semi-flexible mucro; base truncate, sessile, clasping; not sinuate; slightly concavo-convex and slightly arching with maturity; Leaf size: To about 35.0 cm long, about 3.8 cm wide about one-third away from base, 3.5 cm wide at base, 0.8 cm thick and 1.5 cm deep; average about 31.5 cm long, 3.5 cm wide about one-third away from base, 3.0 cm wide at base and 1.0 cm thick; typically bi-laterally symmetrical; spots of variable sizes from about 1.5 mm diameter to about 13.0 mm long and 8.0 mm across, frequently overlapping; teeth to about 1.0 mm long and 1.0 mm across at base; Foliage fragrance: None observed; Cauline bracts: About 16 per scape below flowers and one at each branch; lanceolate; simple; sarcous, glabrous; margins finely dentate with flexible teeth to about 0.5 mm long; apex narrowly acute with semi-flexible mucro to about 3.5 mm long; base truncate, sessile, clasping; typically adpressed in proximal two-thirds; to about 13.5 cm long and about 1.9 cm wide near base, decreasing distally; Leaf blade and bract color: Adaxial (young).—Nearest RHS N187B with spots nearest RHS N186B. Abaxial (young).—Nearest RHS 191B with spots nearest RHS 187B. Adaxial (mature).—Blend nearest RHS N187C, with spots of nearest RHS N187A. Abaxial (mature).—Nearest RHS 137B near longitudinal center and nearest and RHS N186A at edges. Marginal teeth.—Adaxial and abaxial apical portion nearest RHS 157D; adaxial and abaxial proximal portion nearest RHS 185B. Mucro: Flexible to semi-flexible; sharp; straight, about 5.0 mm long and 1.0 mm across; Mucro color: Nearest RHS 165A; Petiole: Sessile; Veins: Parallel; not distinct; Peduncle: Terete; glaucous; glabrous; stiff; strong; upwardly; heavily branched with about 21 branches; about 140.0 cm long and to 1.2 cm diameter at base and 2.0 cm diameter below first branches; branches to about 10.0 cm long and about 0.4 cm diameter at base; branch aspect upwardly and outwardly distally becoming more outwardly, about 30 degrees from horizontal; Peduncle color: Proximally between RHS N186B and RHS N187A, distally nearest RHS 147B finely and lightly maculate with anthocyanin nearest RHS 187A; branches between RHS N186B and RHS N187A; Pedicel: Typically absent, rarely to about 2.0 mm long and 3.0 mm diameter; terete; glaucous; glabrous; stiff; strong; Pedicel color: When present nearest RHS 147B; Buds one day prior to opening: Elongated globose; about 5.0 cm long and about 9.0 mm across at bulb, base about 5.0 mm diameter, bulb about 2.6 cm long; Bud color: Dorsally nearest RHS 137A and heavily maculate with nearest RHS N186B, ventrally nearest RHS 146B; Flower description: Perfect; incomplete; actinomorphic; about 8.0 cm long to exserted anthers and pistil and opening to about 3.07 cm across at outside of anthers; corolla to about 5.9 cm long and 1.8 cm wide at apex; lasting about 3 to 4 days per flower; flowering period about three weeks once plant is mature, approximately three-years-old; producing abundant nectar; Inflorescence: Approximately 100 to 150 flowers per scape; aspect mostly upright; flowering portion about 66.0 cm tall and about 20.0 cm across; Flower fragrance: None detected; Tepals: Six in two sets of three; lanceolate; glabrous and lustrous adaxial and abaxial; outer set acute apex, about 30.0 mm long, fused in basal 17.0 mm, free in distal 13.0 mm and about 5.0 mm wide just above fusion; inner set rounded apex, fused in basal 17.0 mm, free in distal 13.0 mm, about 30.0 mm long and 4.0 mm wide just above fusion, inner set creased on abaxial side along margin where overlapped with outer set while in bud; Tepal color: Outer tepal set adaxial basal one-third nearest RHS 145D, middle portion nearest RHS 145B, distal one-third between RHS 187A and RHS 187B; outer set abaxial nearest RHS 137A with moderate anthocyanins spotting of nearest RHS N186B; inner tepal set adaxial basal one-third nearest RHS 145D, middle portion nearest RHS 145B, distal one-third between RHS 187A and RHS 187B; abaxial inner set base nearest RHS 137A with moderate anthocyanins spotting of nearest RHS N186B with 1.0 mm wide margin in free portion nearest RHS 160B proximally and strongly blushed to solid RHS 187B toward apex; Androecium: Six; Filaments.—Six; terete distally, slightly applanate base; stiff and straight; about 52.0 mm long and 2.0 mm across at base; adnate with inner corolla in proximal 12.0 mm; color nearest RHS 145C proximally and distally nearest RHS 162D moderately maculate with nearest RHS 183D. Anther.—Dorsifixed; longitudinal; straight, oblong; about 19.0 mm long and 2.5 mm diameter before opening; color nearest blend between RHS 174B and RHS 174A. Pollen.—Abundant; color nearest RHS 8B. Gynoecium: Single; 54.0 mm long; Style.—50.0 mm long and 1.5 mm diameter at base; color at base nearest RHS 145C, distally between RHS 146C and RHS 145C and heavily maculate in the middle portion with nearest RHS 187C. Stigma.—Turbinate, apex tri-lobed; distally puberulent; about 2.0 mm tall and 3.0 mm across top; color side nearest RHS 177A; top stigmatic surface in tri-pointed star with color nearest RHS 155D. Ovary.—Inferior; oblong; about 19.0 mm long and 5.0 mm across; surface smooth; color nearest RHS 146D. Fruit: Not yet observed; Seed: Not yet observed; Disease resistance: x Mangave ‘Black Magic’ has not been observed to be resistant to diseases common to other x Mangave beyond that which is normal for Agave or Manfreda. The plant is xeromorphic and survives well with minimal water once established. Hardiness at least from USDA zone 9 to 11. Full extent of winter hardiness has not been tested.