Origin and Habitat: Garden origin (Nursery produced cultivar). The original natural habitat of this species is the eastern Cape in South Africa, also in KwaZulu-Natal and Mozambique.

• Crassula ovata cv. Hummel's Sunset
• Crassula ovata cv. Ohgonkagetsu
• Crassula ovata cv. Sunset

• Crassula ovata (Mill.) Druce
• Cotyledon lutea hort. ex Lamarck
• Cotyledon ovata Mill.
• Toelkenia ovata (Mill.) P.V.Heath
• Crassula argentea Thunb.
• Crassula articulata Zuccagni
• Crassula lucens Gram
• Crassula nitida Schönland
• Crassula obliqua Aiton
• Crassula portulacea Lamarck
• Cotyledon ovata f. variegata hort.
• Crassula portulacea f. variegata hort.

• Crassula ovata cv. Himekagetsu
• Crassula ovata cv. Hummel's Sunset
• Crassula ovata cv. Ohgonkagetsu
• Crassula ovata cv. Sunset
• Crassula ovata cv. Lemon & Lime
• Crassula argentea f. variegata hort.
• Crassula ovata f. variegata hort.
• Crassula ovata cv. Obliqua
• Crassula ovata cv. Tricolor
• Crassula ovata cv. Tricolor Jade

Description: Crassula ovataSN|18609]]SN|18609]] 'Hummel's Sunset' (Golden Jade Tree) is a stout shrubby succulent with glossy leaves that take on spectacular colours when grown full sun and especially during winter, green with golden yellow and red margins. It is a stunning plant forming a wide, multi-branched shrub or small bonsai-like tree, but it is a little smaller, denser, and more compact than the species, growing slowly only to 60-120 cm tall with leaves about the same size as the common jade plant, Crassula ovataSN|18609]]SN|18609]].
Leaves: Rounded, fleshy, about the same size as the common jade plant, Crassula ovataSN|18609]]SN|18609]]. The leaves have a golden yellow colour and the edges ochre or copper-red, especially during the cooler months of the year.
Flowers: Starry, white with a hint of lavender in a terminal cluster.
Blooming season: Late autumn.

Bibliography: Major references and further lectures
1) San Marcos Growers contributors “ Crassula ovata 'Hummel's Sunset' - Golden Jade Tree San Marcos Growers <http://www.smgrowers.com>. Web. 27 Sep. 2014.
2) Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01/giu/2000
3) Stuart Max Walters “The European Garden Flora: Dicotyledons” (Part I) Cambridge University Press, 1989
4) Gordon D. Rowley “The illustrated encyclopedia of succulents” Crown Publishers, 01/Aug/1978
5) Eggli, Urs “Illustrated Handbook of Succulent Plants, Crassulaceae Illustrated Handbook of Succulent Plants.” Springer, Berlin 2002
6) Hermann Jacobsen “Abromeitiella to Euphorbia” Blandford Press, 1960
7) Hermann Jacobsen “A handbook of succulent plants: descriptions, synonyms, and cultural details for succulents other than Cactaceae” Volume 1 Blandford Press, 1960
8) Toelken, H.R. 1997. “A revision of the genus Crassula” in southern Africa. Annals of the Bolus Herbarium 8,1-595.
9) Dr J.P. Roux “Flora of South Africa” 2003
10) Van Jaarsveld, E., Van Wyk, B-E. & Smith, G. “Succulents of South Africa.” Tafelberg, Cape Town. 2000
11) John Manning “Field Guide to Fynbos” Struik, 2007
12) Vera Higgins “Succulent Plants Illustrated” Blandford Press, 1949
13) David Squire “Bonsai Bible” New Holland Publishers, Limited, 2008
14) R. Fernandes in: “Flora Zambesiaca” FZ, Vol 7 Part 1, page 3 1983
15) W. H. Harvey “Flora Capensis” Vol 2, page 327 1894
16) Smith, C.A. “Common Names of South African Plants.” Dept. of Agricultural Technical Services, Botanical Survey Memoir No 35, Government Printer. 1966
17) Leistner, O.A. “Seed plants of southern Africa: families and genera” Strelitzia 10. National Botanical Institute, Pretoria 2000
18) Palmer, E. and Pitman, N. “Trees of Southern Africa.” A.A. Balkema, Cape Town 1972
19) Werner Rauh “The Wonderful World of Succulents: Cultivation and Description of Selected Succulent Plants Other Than Cacti” Smithsonian Institution Press, 1984

Cultivation and Propagation: It is great for container culture and Bonsai cultivation, and the trunk becomes very thick with age and develops interesting patterns. In the greenhouse use a very draining compost. Plants should be well watered and allowed to dry thoroughly before watering again. Fertilize them once during the growing season with a balanced fertilizer diluted to one half the recommended strength. Prune up with age to reveal stocky trunk. Expect this plant to green for a while after replanting and or when over fertilized. Young plants will quadruple in size in one year only. It need full sun to partial shade. Must over-winter in greenhouse or indoors (with lots of light). During the winter months, plants are watered only enough to keep the leaves from shriveling. The most common reason for failure in growing these plants is overwatering. Seldom has any diseases only the mealy bugs like it, and tend to attack around the primary flowering time (winter to early spring), hardy to -1° C.
Propagation: It is propagated by leaf and stem cuttings. Offsets are readily available and cuttings roots easily, it also propagate by leaf-cuttings and often leaves fallen/broken off will self-sow at the base.