Espostoa melanostele
Latin name: Espostoa melanostele Common name: Old man of Peru Plant group: Cacti Plant family: Trichocereae Climate: Subtropical mountain climate Minimal temperature: 5°C (41°F) Optimal temperature: 24-26°C (75-78°F) Recommended place: sunny or penumbral Soil: cactus soil Height: 100 cm (39 in.) Flower color: white Repotting: every 36 months (3 years) Rarity: no Pests: Woolly schield louse (Pseudococcidae) Diseases: Basal rot (Sclerotium cacticola) Fire Blight (Erwinia) Bacterial wilt (Pseudomonas) Bacterial diseases () Fungal wilt (Verticillium) Yellow fungus (Fusarium oxysporum) Origin country: Peru