Seiryu rocks are striking, jagged stones with blue-grey tones and white veins—originally from Japan. They’re popular in terrariums for their natural, mountain-like appearance.

In terrariums, they’re used to:

• Create elevation and visual interest

• Contrast beautifully with moss and greenery

• Mimic rugged landscapes in miniature

Just anchor them well in soil, pair with moss or compact plants, and avoid perfect symmetry for a natural look.