Oreocereus trollii
Native range: Southern Bolivia
Known names: Old Man Of The Andes Cactus
Hardiness: Can drop below freezing ( 0°F )
Mature Size: ~24" tall
Light: Full sun
Water: Allow soil to dry between watering, leave it dry for about a week before watering. 
Soil: Succulent mix, fast-draining
Dormancy Period: Winter
Pet-Safe: No
Plant Size: 2.5" pot
 
Messy hair day!
There are sharp spines hidden behind the whispy hair so please be careful!