- This unique gourd is grown to make bath sponges and if picked young can be eaten as a squash or cucumber replacement.
100+ days. 12 to 18 inches fruits are dried and seeded to make durable sponges. Approximately 320 seeds/oz. Luffa Gourd seeds yield green gourds that can be used for making Luffa sponges. The Gourd seeds do well in moist soil, and can be harvested off the vine when ready.