Sedum corynephyllum cristata
Pretty emerald green color. Cristatas are a mutation, these have flat stems with tightly clustered leaves which will blush with pink in more light.
Your plant will be similar to the one in the photos.
Part sun, protect from hot afternoon sun
Let dry between watering, water deeply
Vivid Root Bark Mix or similar
shown in 3.5" pot
Ships bare root. Pot and soil not included.