About Aeonium 'Halloween' var. White Colour
Aeonium 'Halloween' var. White Colour is a rare variegated cultivar renowned for its dramatic seasonal color shifts and architectural form. This arboreal succulent develops sculptural rosettes (5-7 inch diameter) with spatulate leaves exhibiting creamy ivory centers and vibrant green margins. Under cool temperatures and bright light, the foliage intensifies to rose-pink edges with burgundy undertones, creating a striking tricolor effect. Mature specimens produce pyramidal yellow flower clusters in late winter. Its upright growth habit and chromatic dynamism make it a prized specimen for Mediterranean-style gardens and statement containers.
How to Care for Aeonium 'Halloween' var. White Colour
Light: Requires 4-5 hours of direct morning sun with bright filtered afternoon light. Protect from intense midday sun (USDA zones 9-11) to prevent variegation bleaching. East-facing exposures optimize color contrast.
Water: Water when top 1.5 inches of soil are dry (typically 10-12 days in growth season). Suspend watering during summer dormancy. Reduce to monthly in winter active phase.
Temperature: Prefers 50-75°F (10-24°C). Tolerates brief frost to 30°F (-1°C) when dry. Prolonged heat above 85°F (29°C) triggers dormancy - cease watering entirely.
Soil & Potting: Plant in 70% mineral grit (scoria/pumice) mixed with 30% coconut coir. Select deep pots (8+ inches) to accommodate taproots. Dark containers enhance heat retention during growth season.
Fertilizer: Apply phosphorus-rich fertilizer (3-8-5 NPK) at 20% strength monthly during active growth (October-April). Avoid nitrogen-heavy formulas to preserve variegation.
Pests & Disease: Susceptible to mealybugs in leaf axils. Treat with systemic imidacloprid. Root weevil larvae are primary threat - apply beneficial nematodes preventatively.
Propagation: Aeonium 'Halloween' var. White Colour propagates most effectively via stem cuttings with 60% success. Take 3-inch apical cuttings during active growth (spring), cure for 72 hours, plant in dry scoria mix. Delay watering for 10 days. Maintain 60-65°F (15-18°C) under 40% shade cloth. Roots establish in 5-6 weeks, but variegation stability requires 12-18 months maturation.
More Information
Primary color: Creamy ivory centers with green margins
Secondary color: Rose-pink edges with burgundy undertones (cool stress)
Bloom color: Golden-yellow
Product format: 4 inch potted plant
Cold hardiness: USDA Zones 9b-11 (30°F/-1°C min when dry)
Suitability: Container focal points, coastal gardens, solariums
Propagation: Stem cuttings (spring optimal)
Special characteristics: Seasonal dormancy adaptation, variegation instability, architectural form