<i>Zamioculcas </i>plant named ‘TVZAMBL1’

Abstract

A new and distinct Zamioculcas plant named ‘TVZAMBL1’, characterized by its compact and broadly upright plant habit; moderately vigorous to vigorous growth habit; and glossy leaflets that are close to pure black in color.

Claims

1. A new and distinct Zamioculcas plant named ‘TVZAMBL1’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying colored photograph illustrates the overall appearance of the new Zamioculcas showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Zamioculcas.

(2) The photograph (FIG. 1) is a side perspective view of a typical plant of ‘TVZAMBL1’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

(3) The aforementioned photographs and following observations, measurements and values describe plants of the new Zamioculcas grown during the winter and early spring in 15-cm containers in a glass-covered greenhouse in De Lier, The Netherlands and under cultural practices which closely approximate commercial production. During the production of the plants, day temperatures ranged from 21° C. to 30° C., night temperatures ranged from 18° C. to 20° C. and light levels averaged 12,000 lux. Plants were 18 months old when the photograph and the description were taken. In the detailed description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Zamioculcas zamiifolia ‘TVZAMBL1’. Parentage: Naturally-occurring whole plant mutation of an unnamed selection of Zamioculcas zamiifolia, not patented. Propagation: Type.—By vegetative cuttings. Time to initiate roots, summer.—About 60 days at temperatures about 20° C. to 30° C. Time to initiate roots, winter.—About 77 days at temperatures about 20° C. to 25° C. Time to produce a rooted young plant, summer.—About 140 days at temperatures about 22° C. to 30° C. Time to produce a rooted young plant, winter.—About 200 days at temperatures about 20° C. to 25° C. Root description.—Medium in thickness to thick, fleshy; typically white to light brown in color, actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation, substrate temperature and physiological age of roots. Rooting habit.—Medium density; not freely branching. Tubers.—Length: About 6.8 cm. Diameter: About 6.8 cm. Shape: Irregularly broadly oblong. Texture and luster: Smooth, glabrous; matte; cortical tissue, fleshy. Color, outer surface: Close to 199B to 199C. Color, cortical tissue: Close to 199D. Plant description: Plant and growth habit.—Compact and broadly upright plant habit; overall shape, inverted triangle; stemless; pinnately compound leaves developing in loose basal rosettes; typically about three basal rosettes develop per plant; suitable for 11-cm and larger containers; moderately vigorous to vigorous growth habit; moderate growth rate. Plant height.—About 45 cm. Plant diameter.—About 42.1 cm. Leaf description: Arrangement.—Pinnately compound; about twelve leaflets per leaf. Leaf length.—About 38.4 cm. Leaf width.—About 11.7 cm. Leaflet length.—About 9.6 cm. Leaflet width.—About 3.6 cm. Leaf shape.—Oblong. Leaflet shape.—Elliptic to oblong; slightly to moderately concave. Leaflet apex.—Acute to short apiculate. Leaflet base.—Attenuate. Leaflet margin.—Entire to very slightly angulate. Leaflet texture, upper and lower surfaces.—Smooth, glabrous. Leaflet texture, upper surface.—Very glossy. Leaflet texture, lower surface.—Glossy. Leaflet venation pattern.—Pinnate. Color.—Developing leaflets, upper surface: Darker than 147A and tinged with close to 202A. Developing leaflets, lower surface: Close to 146A. Fully expanded leaflets, upper surface: Close to 203A tinged with darker than 147A; venation, close to 203C tinged with darker than 147A. Fully expanded leaflets, lower surface: Slightly darker than 146A; venation, close to between 147A and 202A. Rachis.—Length, base of leaf to lowest leaflet: About 21.2 cm. Diameter, at base of leaf: About 1 cm. Diameter, at lowest leaflet: About 4 mm. Strength: Moderately strong. Texture and luster: Smooth, glabrous; slightly glossy. Color, upper surface: Close to 197B slightly tinged with close to 148A. Color, lower surface: Close to 197B. Petiolule.—Length: About 5 mm. Diameter: About 4 mm by 4.5 mm. Strength: Moderately strong. Texture and luster: Smooth, glabrous; slightly glossy. Color, upper surface: Close to 147A to 147B. Color, lower surface: Close to 147A. Geniculum.—Length: About 11 cm. Diameter: About 9 mm to 21 mm. Strength: Moderately strong. Color, upper and lower surfaces: Close to 147A; distally, close to between 147A and 147B. Stipule.—Length: About 7.8 cm. Diameter: About 2.6 cm. Shape: Ovate. Apex: Acute. Base: Broadly cuneate. Texture, upper and lower surfaces: Papery. Color, upper and lower surfaces: Close to 199D; towards the base, close to 200D; venation, close to 200B to 200C. Flower description: To date, flower initiation and development has not been observed on plants of the new Zamioculcas. Temperature tolerance: Plants of the new Zamioculcas have been observed to tolerate high temperatures about 40° C. and to suitable for USDA Hardiness Zones 10 to 12. Pathogen & pest resistance: To date, plants of the new Zamioculcas have not been observed to be resistant to pathogens and pests common to Zamioculcas plants.