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All 13 succulents in the catalogue, alphabetical by common name. Each links to a full page with its ratings across the USDA, RHS, Canadian and Australian systems.
- Agave Agave americana – Stiff rosette succulent; large species form towering flower spikes after a decade or more. USDA zones 8–11
- Aloe vera Aloe vera – Clump-forming succulent with thick gel-filled leaves used medicinally. USDA zones 9–11
- Bitter aloe (Cape aloe) Aloe ferox – Tall single-stemmed South African aloe reaching 3 m with thorny grey-green sword leaves and dramatic candelabra of orange flower spikes in winter. The commercial source of "Cape aloes" laxative bitters. USDA zones 9–11
- Cactus (prickly pear) Opuntia ficus-indica – Paddle-shaped succulent producing edible fruit. Naturalised in many warm regions. USDA zones 8–11
- Dragon fruit (Pitaya) Selenicereus undatus – Climbing tropical cactus producing large pink-skinned fruit with white or pink flesh. Spectacular night-opening flowers. USDA zones 10–12
- Henequen Agave fourcroydes – Stiff blue-green rosette agave closely related to sisal, grown almost exclusively in the Yucatán peninsula of Mexico for fibre. The fibre is slightly shorter, softer and yellower than sisal. USDA zones 9–11
- Krantz aloe (Candelabra aloe) Aloe arborescens – Multi-stemmed branching South African aloe forming a 2–3 m shrub with rosettes of toothed grey-green leaves at the branch tips and abundant orange-red conical flower spikes in winter. USDA zones 9–11
- Rhodiola Rhodiola rosea – Cold-climate Arctic and alpine succulent perennial. Roots are a traditional Russian and Scandinavian adaptogen for cold-stress and altitude. USDA zones 1–7
- Round-leaved pigface Disphyma crassifolium – Low coastal succulent groundcover from southern Australia with daisy-like flowers and fleshy leaves. USDA zones 9–10
- Ruby saltbush Enchylaena tomentosa – Hardy arid-zone Australian subshrub with succulent foliage and small juicy red-to-yellow berries. USDA zones 8–10
- Sisal Agave sisalana – Stiff rosette-forming succulent of the Yucatán peninsula, grown commercially across the dry tropics for the long stiff leaf fibre used for rope, twine, matting and dartboard backing. USDA zones 9–11
- Stonecrop (Ice plant) Hylotelephium spectabile – Clump-forming succulent perennial with fleshy grey-green leaves and broad flat heads of pink flowers in late summer that age to copper-bronze. USDA zones 3–9
- Trailing pigface (Hottentot fig) Carpobrotus edulis – Mat-forming South African coastal succulent with thick triangular fleshy leaves and large yellow or pink daisy-like flowers, followed by edible fig-like fruits. USDA zones 9–11