Pilocereus pachycladus
Native range: Brazil
Known names: Pilosocereus azureus, Blue Torch Cactus
Hardiness: Keep above freezing, heat tolerant
Mature Size: ~30' tall, ~5' wide
Light: Full sun 
Water: Drought tolerant, water when soil is dry.
Soil: Succulent mix
Dormancy Period: N/A
Pet-Safe: No
Plant Size: 4" pot, shipped bare-root