Pachypodium lamerei 'ramosum' Wasabi Seeds for Planting Heirloom, Non GMO, Organic Garden Seeds, High Germination Wasabi Plant Seeds Outdoor cold hardiness in zone 5 with iwarenge and other succulents 25 Types of Succulents + Pictures Bob Vila Pebbles at the bottom help drainage, Save this before you forget it., Your plant's roots need airflow, not pebbles. Switching to a pot with drainage holes keeps your succulent from drowning in