Haworthia truncata f. variegata
Haworthia truncata Schönland
Haworthia truncata f. variegata is a small succulent with variegated leaves arranged in 2 opposite rows. It grows up to 0.8 inches (2 cm) tall and up to 4 inches (10 cm) wide. Leaves are nearly rectangular in crosssection, creamy-white or yellow with green stripes and even distinct shades of brownish-green. Flowers are not very showy, appear in white, tubular clusters on an up to 8 inches (20 cm) long stem.
USDA hardiness zones 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
These succulents are not considered difficult houseplants to grow. If you can keep a pot of Aloe alive on a windowsill, chances are you can do the same with a dish of Haworthia. As with all succulents, the most dangerous situation is too much water. They should never be allowed to sit in water under any circumstances. At the same time, these decorative, little plants can be grown in interesting containers such as teacups and even miniature baby shoes. If you're given a Haworthia in such a container, make sure the container had adequate drainage.
Haworthias are small, usually remaining between 3 and 5 inches (7.5 cm and 12.5 cm) in height, and relatively slow-growing. They are often grown in small clusters in wide, shallow dishes. Over time, clusters will naturally enlarge as the mother plant sends off small plantlets. When the cluster has outgrown its dish, repot in the spring or early summer into a new wide and shallow dish with fresh potting soil. This is also the time to take offsets for propagation.
Learn more at How to Grow and Care for Haworthia.
Haworthia truncata f. variegata is a variegated form of Haworthia truncata.
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Succulents are one of the easiest houseplants to grow and care for and Horse’s Teeth species are no different. Although they may not have the same environmental requirements as most succulents, they will be the ideal companions with minimal care. Once you manage to fulfill their particular wishes, you will not need to have them on your mind every day. Only if you love them so much that you cannot stop thinking about their beauty!
Unlike most succulents, Horse’s Teeth and many other Haworthias prefer to grow in a sheltered location. These plants are adapted to grow best in partial shade where they can be protected from direct or harsh sunlight. For both indoor and outdoor growing, place them in a bright area, and make sure they are not exposed to afternoon sunlight. If you want to grow them near a sunny window, it is suggested you filter the light they are exposed to with sheer curtains.
Horse’s Teeth plants love warm temperatures that range from 75 to 90 °F (24-32 °C). They are somehow capable of coping with light freezing conditions, but it is better to keep them away from temperatures that drop below 41 °F (5 °C). When the cooler temperatures tend to show off, you should bring your succulents indoors to protect them from frost.
Accepted Scientific Name: Haworthia truncata var. maughanii (Poelln.) Halda
Acta Mus. Richnov., Sect. Nat. 4(2): 51 (1997)
Origin and Habitat: Garden origin (Nursery produced cultivar)
Accepted name in llifle Database:
Haworthia truncata Schönland
Trans. Roy. Soc. South Africa i. 391 (1910)
Description: Haworthia maughani is a very variable species with unusual flat-topped stubby leaves windowed on upper margin. Similar to Haworthia truncata it is very wanted in cultivation and has a large potential for hybridizing.
Forma variegata: A variegated plant has stripes with two or more different colours, even distinct shades of brownish-green. Plants with variegated leaves are often attractive and highly prized. The leaves are normally dark green, and variegated epidermis is an uncommon mutation, termed a chimera. A chimeral variegation is due to losing the ability to produce chlorophyll in some of the plant’s tissue, so that this tissue is no longer green. Tissues lacking chlorophyll are usually white or pale yellow-coloured (due to carotenoid pigments) or red (due to anthocyanin pigments) contrasting with the normal brownish-green tissue. There are several forms of variegation, depending on the tissues that have been affected. The variegation in some forms is unstable. The extent and nature of the variegation can vary, and sometimes the plant will return to the green form. In others it is stable and does not change under normal conditions. Because the variegation is due to the presence of two kinds of plant tissue, propagating the plant must be by a vegetative method of propagation that preserves both types of tissue in relation to each other.
Subspecies, varieties, forms and cultivars of plants belonging to the Haworthia truncata group
Notes: Contractile roots pull the this plant deeper into the soil to protect it from sun and heat during the dry season. Contractile roots are found in many plants species mainly at the base of an underground organ (bulb, corm, succulent rosette, etc.) The contractile roots continually pull the plants deeper into the ground as the stem elongates so the it remain subterranean or at an appropriate level in the ground.. Contractile roots are usually broad, fleshy, vertical, tapering, wrinkled looking and very distinct of the rather cylindrical fine absorbent roots and are capable of incredible effort.
In most cases, contractile roots not only produce a strong pulling force on but also push away the substratum and create a soil channel in which plant movement is made easier. For example in Haworthia the fleshy contractile roots swell with moisture in the wet season creating a space in the substrate then - after the full drying out of soil during the dry season - a considerable parts of this roots die off leaving empty spaces in the substratum that allow plant movement with minimum or no resistance, at the same time the other roots dehydrates and shrinks vertically, drawing the plant down into the ground. This is repeated early permitting the top of the plant to remain constantly at the soil level.
Bibliography: Major references and further lectures
1) Linda R. Berg ?Introductory Botany: Plants, People, and the Environment? Cengage Learning, 02/Mar/2007
2) Dieter J. Von Willert ?Life strategies of succulents in deserts: with special reference to the Namib desert? CUP Archive, 1992
3) Urs Eggli ?Illustrated Handbook of Succulent Plants: Monocotyledons? Springer, 2001
4) Charles L. Scott ?The genus Haworthia (Liliaceae): a taxonomic revision? Aloe Books, 1985
5) Stuart Max Walters ?The European Garden Flora: Pteridophyta, Gymbospermae, Angiospermae-Monocotyledons? Cambridge University Press, 1984
6) M. B. Bayer ?The new Haworthia handbook? National Botanic Gardens of South Africa, 1982
7) John Pilbeam ?Haworthia and Astroloba: A Collector's Guide? B. T. Batsford Limited, 1983
8) Gordon D. Rowley ?The illustrated encyclopedia of succulents? Crown Publishers, 01/Aug/1978
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Cultivation and Propagation: Not difficult to cultivate, though it is not fast growing and takes several years to form good looking heads. Haworthias are very responsive to differing cultural conditions both as regards colour, length and shape of leaves, rate of growth and size of plant.
Soil: It grows best in sandy-gritty soil and requires good drainage as it it is prone to root rot.
Fertilization: Feed it once or twice during the growing season with a fertilizer specifically formulated for cactus and succulents (poor in nitrogen), including all micro nutrients and trace elements diluted to ? the strength recommended on the label.
Repotting: Must be repotted frequently, because every year a part of their roots die and then rots in the pot. Needs a deep pot to accommodate the long, thick, contractile roots.
Watering Needs: Water regularly in the growing season, but avoid water-logging and let dry between watering, they should never dry out completely during the rest period. If grown in a container, bottom watering by immersing the container is recommended. It must have very dry atmosphere.
Sun Exposure: Keep cool and shaded in summer, and provide locations with diffuse sunlight or light shade, it can tolerate shade, shelter from direct sun during the hottest hours. In shade the body colour will remain more green, while full sun will darken a lot. It can be sunburned if moved from shade/greenhouse into full sun too quickly. The amount of sunlight it can withstand without scorching depends upon the how hot it becomes in the summer in the locale in which it is planted. During the spring it may be able to take full sun until the heat arrives at the end of spring. In an area that has hot afternoon sun, it may be able to take full morning sun, but requires afternoon shade or afternoon light shade.
Frost Tolerance: Light frost protection required. It requires a minimum temperature of about 5?C (But will take a light frost and is hardy down to -5(-7)? C for short periods if it is in dry soil). USDA zones 9A ? 11. In areas prone to frost, grow in an intermediate greenhouse or conservatory, in pots.
Pests and diseases: May be susceptible to mealybugs and rarely scale.
Propagation: Seeds, offsetts, leaves and roots cuttings. Leave the offsets that appear at the base between the leaves attached to form a cluster, or wait until they are 1/3 the size of the parent and then detach and plant. Cuttings root easily and remain true to the species, while seeds tend to hybridize.