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Our first real luffa

Harvesting Luffa

Some gardening endeavors take time, but the payoff is worth the wait when it comes to harvesting luffa (or loofah if you want to spell it phonetically). A few years ago, we ventured into growing this popular gourd and met with challenges along the way. But this week, 2 years later, we finally saw the results we’ve been waiting for.

A little backstory: We tried planting luffa a few ways; direct seeding didn’t pay off, starting seeds indoors worked at first, but then the plants died. It wasn’t until we planted a seedling (started indoors under grow lights) into our GreenStalk vertical garden system (we make a few cents if you use our link with the discount code GSGARDENERD) and fed it more often that the plant took hold.

Luffa flowering
Luffa flowers are beautiful but they don’t always pollinate.

It grew! Our plants were sending up flowers stalks and fruiting babies, but just not at the same time. We kept trying. Finally we got one pollinated gourd –yes, just one– and we nursed it along through the season. It grew…

This is a good time to mention that we live in a warm-winter climate where we don’t get a frost, so our vines didn’t die at the end of the season. The same vines have been going since 2018.

Harvesting Luffa

And after what seems like forever, finally it began to turn yellow and soften. Of course, we were so excited we didn’t photograph it before harvesting. We just started to peel the skin…

luffa ready
The luffa is yellow enough and soft enough to peel. Contrary to popular belief, you don’t have to wait until it dries or turns brown. Just make sure it is evenly yellow and the skin feels loose.

Some sources say that if you harvest too early the sponge can rot. If there are any black spots (not brown, black) then cut those parts off. We had no black spots so we felt confident going forward. Plus we found this website to support our theory.

peeled luufa
The skin came off easily while it was still soft. No need to soak the pods at all at this stage.

Once the luffa is peeled, it’s time to remove the seeds.

Luffa seeds
Shake out the seeds before drying. Some seeds may stick inside, so it may be easier to shake them out after the gourd has dried a little.


There is a gummy sap surrounding the luffa flesh, a residue from the skin. Time to blast that off. We ran it under a strong stream of water in the sink, but also took it outside for a jet spray from the hose for good measure.

Rinsing luffa
Use a jet spray to remove sap from the gourd.

Now Dry It!

Set your luffa sponge in the sun to dry for a while. Ours was small so it dried in just a few hours. Larger sponges may take a day or two to dry completely. Keep it indoors in a sunny window if you have humid or rainy weather in the forecast.

Dried luffa
Our dried luffa sponge is ready for use. You can cut the sponge into sections for easy handling or just leave it as is for hard-to-reach spots.

We couldn’t be more proud of our one little luffa sponge. It took 3 years of trial and error but it finally paid off. It’s living proof that persistence is key when it comes to growing what you love. Keep going, Gardenerds!

This Post Has 10 Comments

  1. Rhonda

    This is my first year of growing luffa in Zone 7. The 6 plants were grown indoors under grow lights then moved outside to greenhouse. All plants flourished and the vines have grown along a 16′ fence, covering it. Just last week blooms started appearing and flowers emerged. If any luffas will grow remains to be seen. Weather turning cooler and frost will begin in about 6 weeks. Hoping I’ll be able to harvest 1 or 2 at least.

    1. Christy

      How exciting, Rhonda! I hope they do fruit. If you have a way of protecting them over winter, they will behave as a perennial if they survive. My plant is 3 years old and it finally started producing last year (at the time of this blog post). Now it’s still alive and has produced another luffah for this year.

  2. Linda

    Nice luffa sponge

  3. Jonathan

    Awesome Luffa and luffa sponge

  4. Amy

    Congratulations on your luffa, it looks amazing! I’d love to grow these but we’re in zone 2-3.

  5. Jenne

    Great job on growing this! I’ve been wanting to try these for years. My mother in law grew them in Tennessee and gave me seeds but I doubt if they’re any good now. Maybe I’ll give it a try since seeing your success!

    1. April

      My seeds were 5 years old and they still grew when planted straight into the garden bed, took about 10 days to sprout. I snipped off a very small piece of the seed shell at the fat round end not at the pointed germ end. I placed them in warm water overnight and in the morning, put 3 seeds in each hole straight into the ground with a tablespoon of worm castings. per hole. I am happy to say i have at least 40 good sized luffas on my vines. While the luffas are doing fine the vines are worse for wear. I live in australia.

      1. Christy

        That’s a cool trick, April. Thanks for sharing. It’s good to know you had a good harvest from your efforts, too!

    2. Lelia Terrell Crispen

      I have ALOT of seeds from 2014 harvest (one gourd produced 400+ seeds) and I used these seeds this season; 2021; here in Jacksonville FL and had great success this year. As well sent seeds to luffa friend in El Paso TX & they also having great success this season with seeds from 2014 harvest. I kept my seeds in a plastic Folgers coffee can (without the coffee of course).

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