@theeverhopefulgardener: You can grow your own kitchen or bath sponges. If you need a reputable source for luffa seeds, check the link in my profile. Luffa gourd needs 110 days of warm weather growing. If you have a shorter growing season you can start the seeds indoors to increase your chance of a good harvest. Seeds typically germinate in 7-10 days. Clipping a tiny piece off the top of the luffa seed (I use nail clippers) can speed up germination. (I have a video on how to do this in my luffa story highlight in my profile. The vines do well having something to climb and work great on a garden arch. I like to grow 3-4 plants knowing a couple may get eaten or not survive. 2-3 plants will typically give me a year’s worth of sponges. #luffa #luffah #loofah #sponge #growyourown