<i>Hibiscus </i>plant named ‘Garnet Globes’

Abstract

A new and distinct cultivar of winter-hardy, herbaceous, perennial, hybrid Hibiscus plant named Garnet Globes comprising a rounded, compact, mound habit of multiple, well-branched, basal stems producing flowers beginning in late July to early August and continuing for at least ten weeks. The flowers are garnet-red colored and open up to produce a flat face with furrows or folding at the veins providing greater strength to withstand wind and rain. The foliage is three-lobed to five-lobed with the divisions cut nearly to the petiole or midrib. The new plant is useful in the landscape as a specimen or in mass.

Claims

1. A new cultivar of hardy herbaceous perennial Hibiscus hybrid plant named Garnet Globes as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The photographs of the new plant demonstrate the overall appearance of the plant, including the unique traits. The colors are as accurate as reasonably possible with color reproductions. Ambient light spectrum, source, temperature, and direction may cause the appearance of minor variations in color.

(2) FIG. 1 shows a four-year-old plant in full flower in a display garden.

(3) FIG. 2 shows a close-up of some flowers and buds.

DETAILED BOTANICAL DESCRIPTION

(4) 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, Hibiscus Garnet Globes, has not been observed in 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 a three-year-old plant in the loamy-sand, open-field full-sun display garden of a nursery in Zeeland, MI with supplemental fertilizer and water as needed. The plants are of natural habit and were not treated with plant growth regulators, nor were they pinched at any time in the growth year. Parentage: The female parent is 19-313-2; the male parent is 19-334-2; Propagation: Method.Shoot tip cuttings and sterile shoot-tip plant tissue culture division. Time to initiate roots from tissue culture.About two weeks. Rooting habit.Normal, branching, developing thick to about 2 cm diameter, fleshy; root color creamy yellow nearest RHS 161D depending on soil type. Crop time.Under normal summer growing conditions 15 to 18 weeks to flower in a four- liter container from cutting without vernalization; vigor is moderate; Plant description: Plant habit.Hardy herbaceous perennial with about 25 thick, upright, lightly branched stems producing a rounded mound to about 102 cm tall and about 110 cm wide; flowering in distal two-thirds of the plant. Stem.Cylindrical, glabrous, glaucous; to about 100 cm long and about 20 mm diameter at the base, average about 85 cm long and about 17 mm diameter at base; lightly branched. Stem color.Nearest RHS 146D in portions protected from direct sunlight, between RHS N186D and RHS N77D in regions with higher sunlight exposure. Branches.To 4 per stem, average about 2 per stem; cylindrical, glabrous, glaucous; to about 32 cm long and 5 mm diameter at base, smaller distally. Branch color.Nearest RHS 146D in portions protected from direct sunlight, between RHS N186D and RHS N77D in regions with higher sunlight exposure. Internode.About 20 nodes per stem below unbranched portion; average 41 nodes per stem; internode length about 2 cm of an unpinched plant. Internode color.Same as surrounding stem. Foliage description: Palmate; tri-lobed to penta-lobed, with lobes deeply dissected to petiole or midrib or nearly to petiole or midrib; alternate; irregularly dentate; apex and side lobes acute; base cordate; glabrous and matte both abaxial and adaxial; Leaf blade size: To about 13 cm long and about 10.5 cm across, average blade size 10 cm long and 7.5 cm wide; no fragrance detected; Foliage color.Young expanding leaves-adaxial nearest RHS 137B with slight marginal blush of nearest RHS 187B, abaxial between RHS 137B and RHS 138A with a slight marginal blush of nearest RHS 187B; mature leaves-adaxial between RHS NN137A and RHS NN137B, abaxial between RHS N148B and RHS 195A. Veins.Palmate; lustrous adaxial; costate, micro-puberulent, and matte abaxial. Vein color.Adaxial midrib proximally nearest RHS 187C and distally nearest RHS 187A, primary and secondary veins nearest RHS 187A; abaxial midrib nearest RHS 146D, primary and secondary veins nearest RHS 147C. Petioles.Mostly cylindrical, proximally slightly applanate on adaxial surface; micro-puberulent; to about 10 cm long and 4 mm across at base, average size about 7 cm long and 3.5 mm wide at base. Petiole color.Adaxial between RHS 187A and RHS N187A; abaxial between RHS 146D and RHS 144A. Flower description: Complete; perfect; actinomorphic; rotate; solitary; mostly outwardly facing; moderately cupped; rotate; lasting up to two days on the plant; Flowering season: Beginning in late July and continuing for at least five weeks; Flower size: To about 15 cm across natural spread, 7 cm deep, and 16.5 cm across if flattened, decreasing in size slightly in size distally and later in the season; Buds one day prior to anthesis.Ellipsoidal with rounded apex and bluntly truncate base; sepals adpressed to petals; to about 6.5 cm long and about 4 cm diameter near middle. Bud color one day prior to anthesis.Exposed petal color main portion between RHS 187C and RHS 59A, calyx abaxial basal portion nearest RHS 146B with distal portion in high light exposure veins nearest RHS 187C. Epicalyx.Average about 8 per flower; linear; entire, with margin micro-ciliolate; micro-puberulent, dull surfaces both abaxial and adaxial; sharply acute apex and truncate base; arcuate upwards near apex; to about 30 mm long and about 4 mm wide at base. Epicalyx color.Adaxial base nearest RHS 146A and moderately blushed or maculate with nearest RHS 187C, middle and distal portions between RHS 144A and RHS 146D, abaxial base between RHS 144A and RHS 146D, middle and distal portions nearest RHS 137B with veins nearest RHS 187C. Calyx.Campanulate, form star-shaped hypanthium; to about 20 mm deep and 40 mm wide at apices. Sepals.Typically, five; ovate; acute to apiculate apex; margin entire, edentate; adaxial and abaxial micro-puberulent and matte; about 30 mm long, about 18 mm wide at fusion, basal 10 mm fused. Sepal color.Adaxial basal portion nearest RHS 146D blushed lightly with nearest RHS 187C; abaxial proximally between RHS 144A and RHS 146D, strongly blushed to solid nearest RHS 187A in the distal one-half to one third. Inflorescence.Up to 46 per main stem and branches without pinching; single flower per node. Flower lastingness.Persist for one to two days; effective beginning late July or early August and lasting for at least 5 weeks. Flower fragrance.None detected. Petals.Five; glabrous adaxial and abaxial; adaxial eye zone of about the proximal 15 mm lustrous, remaining distal adaxial portion and entire abaxial matte; adnate to the androecium to form a column, imbricate to about 110% overlapping at widest part (petals overlapping both petals on either side, so two petals about 10% overlapping a third petal); margin undulation slight; with inside leading edge of petals frequently folded or pleated about 4 mm; palmately veined, primary veins slightly impressed on adaxial and costate abaxial; surface slightly rippled along veins; apex rounded with distinct basal claw and limb; margins entire, edentate. Petal size.To about 12 cm across including folded portion and about 8.5 cm long, claw base about 9 mm across. Petal color.Adaxial basal eye highly lustrous nearest RHS 187B, distal portion toward margin nearest RHS 59A, region between slightly lighter between RHS 60A and RHS 59A; with veins same color as surround region; abaxial proximal 2 mm of claw nearest RHS NN155C, surrounding eye to about 8 mm from claw base between RHS 61C and RHS 61B, distally between RHS 59A and RHS 60A. Flower lastingness.One to two days. Gynoecium.Single; partially enclosed in column. Column: glabrous and lustrous; terete, fistulous; about 35 mm long and about 11 mm across at base; with pistil exserted about 12 mm. Column color: between RHS 60D and RHS NN155D. Style: micro-puberulent in region exserted above column; about 50 mm long, penta-furcate in about distal 7 mm, branch diameter about 1 mm; color nearest RHS NN155B in exposed portion, and RHS NN155B portion enclosed in column. Stigma: five; spheroid flattened proximally and distally; puberulent; about 3 mm in diameter and 1 mm tall; color between RHS 53A and RHS 60A. Ovary: superior; conical with a acute apex and truncate base; longitudinally grooved in undulated pattern; about 11 mm across at base and about 10 mm tall; color nearest RHS 150D. Androecium.Attached to column. Filaments: numerous, about 125, attached starting about 12 mm from base to 2 mm from apex of column; to about 3 mm long, about 0.3 mm diameter; color nearest RHS 60C. Anthers: flattened reniform; dorsifixed; about 2 mm across, 2.5 mm long, and about 1 mm thick; color variable, proximal anthers nearest RHS 10D on sides with a light blush of nearest RHS 60C, distal anthers nearest RHS 10D throughout. Pollen: abundant, globose, less than 0.2 mm across; color nearest RHS 16B. Pedicel: Cylindrical; glabrous; lightly glaucous; length from base of sepal to abscission point to about 17 mm long, from abscission point to stem node to about 85 mm long; about 4 mm wide; longer on early flowers and decreasing in distal flowers; Pedicel color: Between RHS N144D and RHS 145A in ventral portion away from the sun, and nearest RHS 183C with an undertone of nearest RHS NN144A in the dorsal portion; Peduncle: Cylindrical; glabrous; glaucous; flowering in upper 65 cm; to about 60 cm tall and about 12 mm diameter from below unbranched portion; to about 32 flowers per center main stem, to 5 flowers per branch, and 46 flowers on the whole stem; Peduncle color: nearest RHS 146D in portions protected from direct sunlight, between RHS N186D and RHS N77D in regions with higher sunlight exposure; Fruit: Rare; penta-loculicidal capsule; with pubescent along inner septa; puberulent outside; ellipsoidal, cuspidate apex and truncate base; about 20 mm tall and 18 mm diameter; color nearest RHS 200A when mature; about 85 seeds per fruit; Seed: Minutely hispidulous; globose; about 3.5 mm in diameter; color between RHS 200C and RHS 200D; Resistance: Hibiscus Garnet Globes has not displayed any pest and disease resistance or susceptibility beyond that typical of hardy perennial Hibiscus. Growth: The new plant grows best with plenty of moisture. Hardiness: At least from USDA zone 4 through 9.