The Haigo named 'Basho' comes from the fact that his pupil planted a Japanese banana plant (Basho), which was rare at the time, in a hermitage of Fukagawa, and Basho loved it.
「芭蕉」という号は深川の庵に弟子が当時珍しかったバショウ（芭蕉）を植え、それを芭蕉が愛したところから。