Aeonium tabuliforme
| Light | Bright light with some direct sun; protect from scorching midday sun in hot climates |
|---|---|
| Water | Regularly in the cool growing season; keep nearly dry during summer dormancy |
| Soil | Free-draining but slightly richer than desert-cactus mix (see Soil and potting mix) |
| Temperature | Frost-tender; keep above freezing, USDA zones 9b–11 |
| Propagation | Seed (primary); leaf cuttings possible but slow |
| Toxicity | Generally considered non-toxic to cats and dogs |
Aeonium tabuliforme is a striking, nearly stemless succulent from the Canary Islands whose leaves overlap so tightly and evenly that the whole plant flattens into a living green disc pressed almost flush against the ground or rock face. This remarkable geometry gives it common names such as dinner plate aeonium and flat-topped aeonium, and makes it one of the most instantly recognisable members of the genus Aeonium.
Description
Aeonium tabuliforme forms a single, symmetrical flat rosette that can reach up to about 45 cm across yet stands only a few centimetres tall. Dozens to hundreds of thin, spatula-shaped leaves spiral outward in a dense, overlapping mosaic, their pale green blades fringed with fine white hairs (cilia) along the margins. Held horizontally, the rosette resembles a plate or a shallow bowl — an adaptation that channels dew and rain toward the centre and shades the roots below.
Like other Aeonium, the species is monocarpic: after several years the mature rosette elongates into a tall, pyramidal flowering stalk crowded with small yellow star-shaped flowers. This bloom is spectacular but final — the rosette that flowers dies afterward, having set seed. Because A. tabuliforme rarely branches or offsets, losing the single rosette to flowering means the plant must be renewed from seed.
Distribution and habitat
The species is endemic to the island of Tenerife in the Canary Islands, where it grows on shaded, often north-facing cliffs and rocky slopes. There it typically clings flat against vertical or steeply inclined rock, angled to catch the mild, humid Atlantic light while avoiding the harshest sun. The Canary climate — cool, moist winters and warm, dry summers — drives its winter-growing, summer-dormant rhythm, which is worth keeping in mind in cultivation.
Cultivation
Aeonium tabuliforme is a rewarding but slightly particular plant. Unlike desert cacti, aeoniums are winter growers that prefer cooler temperatures and more moisture in autumn through spring, then rest through the heat of summer. Grow it in bright light with some gentle direct sun, but shield it from scorching midday sun in hot climates, which can bleach or burn the flat rosette. A free-draining mix that holds a little more moisture and organic matter than a pure mineral cactus blend suits it well.
Water regularly while the plant is in active growth and the soil has begun to dry, then ease off sharply in summer, giving only occasional sips to prevent complete shrivelling. The flat, upturned rosette can collect water in its centre; where humidity is high, take care that standing water does not sit in the crown and invite rot. Many growers tilt the pot slightly or grow the plant at an angle, mimicking its natural cliff-face posture so water drains away. See Watering and Repotting for general technique.
Propagation
Seed is the primary and most reliable method, especially since the plant so rarely offsets. The tall flowering stalk produces abundant fine seed that germinates readily when sown on the surface of a moist, well-draining medium and kept humid and cool. Because flowering is fatal to the rosette, collecting and sowing seed is really the only way to keep a line going.
Vegetative propagation is more limited than in branching aeoniums: individual leaf cuttings can sometimes be rooted, though results are slow and unreliable, and the solitary habit means there are seldom offsets to remove. See Propagation — seed and Propagation — cuttings for full walkthroughs.
Common problems
- Crown rot — water pooling in the centre of the flat rosette, combined with poor airflow, can rot the growing point; keep the crown dry and consider angling the plant.
- Summer stress — pushing water and sun during the plant's summer dormancy causes shrivelling, leaf drop and rot; let it rest instead.
- Etiolation — too little light makes the rosette lose its tight, flat symmetry and dome or stretch upward.
- Pests — mealybugs (white fluff nestled between the crowded leaves) and aphids (often on the flower stalk) are the usual culprits; see Pests and diseases.
See also
- Aeonium — the genus overview
- Soil and potting mix · Watering · Propagation — seed · Propagation — cuttings · Repotting · Pests and diseases