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Amorphophallus (Titan Arum)

In Europe our Amorphophallus collection is the largest private one and the second largest including botanic gardens, worldwide it is number three on a private and institutional level. It covers more than 150 Amorphophallus species in more than 500 clones. That means we cultivate three different genetic clones per species on average, in more than 550 pots and a couple of species grown in raised beds. And the collection keeps growing - in the last 14 years we have invested more than 35,000 Euro in building up this impressive collection.

Titan Arums include several species with some of the largest flowers within the floral kingdom. They usually develop only a single, large leaf on a stout stem, which may resemble a tree-trunk in giant species. All make a long rhizomatous or a round corm (a "tuber"), weighing up to 60kg in their largest member, namely Amorphophallus titanum from Sumatra. The offered subtropical species remain a little bit more manageable for their overall smaller size. They will thrive in any humus rich, well drained substrate (with up to 70% peat or any other humus rich substrate added). As soon as they start to grow (usually in spring) they require sufficient warmth with a minimum of some 20°C and a semi-moist soil in a partially shaded spot. As soon as the leaf starts to yellow (which is usually in autumn), keep plants rather dry at a minimum of some 15°C. Store corms in a warmer spot with beginning of spring the following year and carefully restart to water as soon as the new leaf appears from the center of the corm. With maturity plants may form an inflorescence instead of a leaf. After flowering most specimens will usually form a new leaf in the same year. Please note that plants marked as "flowering size" in the shop do not necessarily flower the year of potting, but are mature plants for their weight. For their decorative foliage, unique growth habit and outstanding inflorescences all Amorphophallus species are perfect collector's items, however only some 10 species are more widely available. At present more than 210 different species are known and several new discoveries are made each year. Most species are rarely offered in the trade and thus high-priced botanical gems. Tubers are usually available between April/May and September/October each year. If tubers are sold out at present, please check our website again towards the end of next spring.

For further detailed information on sowing and cultivation of Titan Arums (Origin, Habit and General Information - Cultivation - Propagation by Seeds - Popagation by Offsets & Leaf Bulbils - Propagation by Leaf Cuttings - Pests and Diseases), please have a look on this page: "The Genus Amorphophallus" (www.amorphophallus.info).

All offered tubers descend from cultivated plants! We do not offer wild collected tubers and strictly discourage our clients in buying such plants, which may have been exported illegally in some cases. In several aroid species wild populations are decreasing alarmingly due to professional wild collections in habitat. Neither do we sell imported tubers from Asia which might be infected with several serious pests and might have been stored under totally inappropriate conditions. Wild collected as well as imported tubers you may find at various selling platforms at probably lower prices, but these imported plants will never reach the quality of our tubers! If you see a picture of a tuber with some white dustlike cover on it, then it is an imported tuber. In order to receive a plant health certificate for export from local authorities in India and Thailand, tubers have to dusted with some white fungicide.

At present we are propagating a very good selection of tuber-forming aroid species within the following genera: Amorphophallus, Anchomanes, Ariopsis, Arisaema, Arum, Biarum, Colletogyne, Dracontium, Dracunculus, Gorgonidium, Helicodiceros, Pinellia, Pseudohydrosme, Spathantheum, Taccarum, and Typhonium. A full list of what may become available next autumn is available on this page: "Amorphophallus, Arisaema, Arum, Dracontium and Typhonium in propagation". We do not propagate these species at large scales and from the rarer aroids very few tubers will be available. Please note, that we do not take backorders nor reservations. Thus please bookmark this page and come back to us in the course of late summer and autumn to check availability of tubers and seeds.

Price is given per package (3 seeds) or per dormant corm (diameter given in ø cm or length given in cm).

Note: All corms are available for a delivery within Europe only ! Seeds are shipped worldwide. For Non-European customers only: We do ship dormant tubers outside Europe, provided that all risk is upon the buyer. We do not issue any phytosanitary certificate, which is officially required for most countries. We kindly ask you to check with your local import regulations before placing an order!
Articles
Amorphophallus bulbifer

Amorphophallus bulbifer

100 (150)cm, a medium tall species with a beautiful, showy orange-rose spathe of some 20cm in height and a nicely mottled leaf stalk. Its' leaflets are slightly undulated and have bright-pink margins in a sunny spot. Easily grown in any humus rich, well drained soil. Store dormant corms from late autumn to end of spring in a dry and cool place during winter. This species forms axillary bulbils, which serve for propagation. Additionally, Amorphophallus bulbifer is one out of few species which may be apomictic, i.e. it may set viable seed without prior pollination. Our seeds are high quality seeds from plants cultivated under optimal conditions in Europe. What you will usually find on some some well-known selling platform are imported, low quality seeds stored under mostly inadequate conditions. VII-VIII.

price (plus Shipping Costs)
seed package3430 € 2,99
Amorphophallus claudelii

Amorphophallus claudelii

10 (15)cm, a showy miniature new species discovered in 2013 and formally described in 2016. It belongs to the group of the smallest Amorphophallus species which are all known to occur in central Laos only: Amorphophallus myosuroides, Amorphophallus ongsakulii and Amorphophallus puchellus. It bears a tiny white spathe with a violet center inside and a long protruding green spadix and a dark green leaf with silvery-green center stripes. Tuber sized 1 cm are already flowering size! For any rich, well drained soil in a partially shaded spot. In winter keep dormant corms slightly moist to almost completely dry at a minimum of some 15°C. VI-VII.

price (plus Shipping Costs)
dormant tuber (0.5 cm)0194 € 9,90
Amorphophallus kiusianus (Kyushu Titan Arum)

Amorphophallus kiusianus (Kyushu Titan Arum)

80 (120)cm, Kyushu Titan Arum is a medium sized, robust species from woodlands of Southern Japan (Kyushu island). Makes an elegant flower stem topped by a yellowish green spathe mottled light brown and a black spadix, followed by a fruit stalk with intensive pink berries, turning to metallic dark blue on ripening. Easily grown in any humus rich, well drained soil in partial shade. Larger specimens may be hardy in the open garden in a protected spot in humus rich soil with a good, insulating leaf cover in winter. If grown in pots keep soil slightly drier (but not totally dry) and store pots in a cool, yet frostfree place in winter. Amorphophallus kiusianus is one out of few species which is apomictic, i.e. it may set viable seed without prior pollination. USDA climate Zone 9. VI-VII.

price (plus Shipping Costs)
seed package (100 seeds)8216 € 24,90
seed package (3 seeds)9150 € 0,99
seed package (3 seeds)
Amorphophallus lewallei

Amorphophallus lewallei

90 (110)cm, a medium sized species from Burundi (Africa) with a flat unfolding pale greenish-maroon to pale green spathe and a pale greyish-green spadix inside. This species makes some large stoloniferous offsets from the main tuber. In winter keep dormant corms almost completely dry at a minimum of some 15°C. VI-VII.

price (plus Shipping Costs)
seed package0262 € 7,99
seed package
Amorphophallus thaiensis

Amorphophallus thaiensis

40 (60)cm, a medium sized species from northern Thailand with a broad pale yellowish-green to pale rosy-white spathe and a short swollen pale rose to almost white spadix appendix below a broad leaf umbrella. In winter keep dormant corms almost completely dry at a minimum of some 15°C. VI-VII.

price (plus Shipping Costs)
dormant tuberous offset (02.5 cm)8546 € 7,90