Organic Container Gardening: Growing Zucchini (Courgettes) in Pots

Updated on May 3, 2019

Zucchini (or courgettes as they are known here in Europe) are fast growing, productive and robust, making them one of the easiest vegetables to grow. They are a perfect choice for beginner gardeners.

You Will Need:

  • Organic zucchini seed
  • Small containers for seedlings
  • Large containers for adult plants (five gallons minimum—the bigger the better!)
  • Some high-quality organic potting compost
  • A sheltered sunny spot (If you live in a cold climate then you can grow them in greenhouses. It's best not to plant them outdoors until all chances of frost have passed.)
  • Organic fertilizer
  • Straw mulch
  • Trellis or bamboo poles (optional)

Growing Zucchini From Seed

The best way to get organic zucchini seed is to buy it from a reputable garden centre or online store. You can also get seeds from the zucchini squash itself, but it has to be a very mature large one—they are usually harvested while still small before the seeds have developed, so it's easier to buy the seeds in packets.

Before sowing the seeds, I find it helps to soak them in room-temperature water overnight. This seems to make them germinate faster.

Sow the seeds in small pots by making a small hole one inch deep and pressing the seed into it on its side. Cover and water gently, keeping them moist until they sprout in approximately seven days.

Seedlings with the first two "leaves" or cotyledons
Seedlings with the first two "leaves" or cotyledons

The first two leaves to appear are not true leaves; these are called cotyledons. Once the seedlings have grown at least two "true" adult leaves, they will be big enough to be hardened off and planted in larger containers outside. Depending on the climate you live in, they can be grown directly outdoors or in a greenhouse. If you don't have space outdoors, you can grow them indoors by a sunny windowsill too—but be warned, zucchini plants get BIG!

Transferring Seedlings Outdoors

"Hardening off" means preparing the seedlings for outdoor life. Seedlings are pretty weak and delicate, so it takes them time to adjust to the great outdoors. The trick is to help them adjust little by little. Put the seedlings out for one or two hours for the first couple of days, in the shade. Then one hour per day in direct sun gradually increasing the time per day, but don't overdo it too soon or they may wither.

Once they start to adjust, the leaves will turn a darker green, and they will be ready to leave outdoors all the time.

Bear in mind that they will probably need more watering once outside, especially in a hot sunny climate (perfect for zucchini growing). Container plants always need watering more often than plants in the ground. This is where mulching comes in—using a mulch can help to keep a plant healthy and hydrated during hot weather, so be sure to cover the top of the soil with straw mulch or a good alternative.

In addition to plenty of watering, start to fertilize the plants with an organic fertilizer every two weeks or so.


The whole point of organic gardening is to avoid pesticides or genetically modified seeds that produce these poisons internally.

Pests can be a big problem for organic gardeners. Apart from handpicking bugs and caterpillars off the plants or strategically placing plants that are natural deterrents close by, there are a few other methods you can try:

  • Insect warfare—ladybirds, wasps, spiders—all good for getting rid of the pests on your plants!
  • Soapy water—spraying leaves with mild soapy water is usually enough to deter aphids and other leaf pests
  • Diatomaceous earth—effective for preventing vine borers, slugs
  • BT—supposedly a natural protein, it kills all kinds of caterpillars without harming other insect life (such as bees which are often harmed by pesticides). It can be found in most garden centres. I prefer not to use BT unless I really have to though.

Growing Zucchini on a Trellis

Zucchini plants, as I may have mentioned before, grow big. They are trailing vines, so unless you want your plants to spill over the edges of their pots and trail over the ground, it's best to stake or trellis them.

Plants that are growing upright are usually healthier too, because the air can circulate better, which helps to avoid rotting and disease. For containers, the best method I have found is to attach a wire mesh trellis to a wall behind the plant as this ensures the plants are very stable when they grow up it. Feel free to experiment with other methods though, depending on your outdoor space and resources.

A good sized zucchini ripe for picking
A good sized zucchini ripe for picking

Pollinating and Harvesting Zucchini

Zucchini plants start to produce fruit very fast, sometimes as soon as six weeks after planting! The plants will produce male and female flowers, distinguishable by the thickness of their stems. The males have thin stems and the females thick ones, the latter looking like mini zucchini as soon as they grow. The females must be pollinated by the males for the fruit to form properly.

If you find that the zucchini growing on your plants are very small or withered looking and drop off, you may have a problem with pollination. This can be remedied by pollinating the female flowers by hand. How to pollinate by hand? Well, it's simple. Break off a male flower, remove the petals to reveal the pollen covered stamen and rub this on the stigma of the female flower. Voila! If you don't like the idea of breaking off a male flower, you can use a cotton swab to transfer the pollen instead.

When harvesting zucchini, cut them off with a sharp knife. They are best when they are still small; no more than two inches thick. The smaller the better when it comes to flavour!

The flowers are also edible and can be eaten raw in salads or cooked. Try frying them lightly with butter and garlic—there's nothing quite like it.

And now you know all you need to start growing organic zucchini in containers.

Happy gardening!


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    • profile image

      Hannah Flack 

      5 months ago

      this was wonderful! Thank you for sharing all these tips and recipes..really helps those of us without the create gene;)

    • Gloriousconfusion profile image

      Diana Grant 

      13 months ago from United Kingdom

      I bought some zuchini plants last week at a car boot sale, and they are already flowering, so finding your article today has been very helpful, as I didn't know how to identify male and female flowers and didn't know that they grow on the same plant. Fortunately lots of bees come to my London garden as I try to attract them (and butterflies) with heavily polinated flowers, so I assume the bees will do the pollinating without my intervention.

    • JosephSorbara profile image


      7 years ago from New York,NY

      Zucchini = courgettes This information is much appreciated as I am making a trip to Europe soon specifically Monaco!

    • Sue Bailey profile image

      Susan Bailey 

      7 years ago from South Yorkshire, UK

      I grew some marvellous courgettes in containers on my patio here in the UK a couple of years ago. I had so many I was constantly trying to few new ways of using them up. I put them in soups, cakes and muffins and all kinds of things. I didn't do so well with the aubergines, only harvested about 3 from 4 plants. Nice informative hub.

    • profile image


      7 years ago

      I am looking forward to giving this a try--thanks!

    • LevitaG profile image


      7 years ago

      Very informative, this is great and very useful, thanks!

    • mommyhood profile image

      Karla D 

      7 years ago

      Thanks for this useful hub, I will be planting zucchinis here soon now that I know how simple it is to do!

    • MarleneB profile image

      Marlene Bertrand 

      7 years ago from USA

      This is very helpful. I just planted zuccini in a container. Then, I wondered what to do next. I learned a lot from reading your tips here. Thank you.

    • Sugahware profile image

      Robyn D Bera 

      7 years ago from California

      I've been growing organic Zucchini for years in my garden. I grow giant ones in the ground for stuffing and small ones in pots. Thanks for sharing. Everyone should have a garden!

    • VictoriaSheffield profile image

      Author Victoria Sheffield 

      7 years ago from Georgia

      much needed! I love organic gardening!

    • Chris Achilleos profile image

      Chris Achilleos 

      7 years ago

      Very useful hub. I recently moved and want to start planting. Since it grows so quickly, I think my first one will be Zucchini :) Thank you for sharing the advice. Voted up and useful!

    • SJLA profile image


      7 years ago from Indiana

      Thanks for the info I love Zucchini bread and I am OK at gardening. Let us hope for the best. I really want to give this a try.

    • Naturezoom profile image

      Susan Crowson 

      7 years ago from Texas

      I may have to try this. We have a lot of gophers who gnaw on the roots when I plant vegetables in the ground. Maybe the containers will keep the plant safer. Thanks for the great directions.

    • twig22bend profile image


      7 years ago

      Great instructions. I would like to try growing zucchini. You make it look so easy. Thanks for sharing.

    • Eco-Lhee profile image


      7 years ago from Alberta, Canada

      I have a pet rabbit and he eats everything, I am thinking that vertical container gardening this year, might be the way to go. I love zuchinni, so I am going to try this, thanks for sharing!

    • learningwithlife profile image

      Natalie Sater 

      7 years ago from Florida, USA

      This is awesome! My boyfriend and I are in the process of creating a 100 sq. ft. garden, so I'm always looking for new ideas :-)

    • ytsenoh profile image


      7 years ago from Louisiana, Idaho, Kauai, Nebraska, South Dakota, Missouri

      This is a great idea. I wonder if the same method can be used for yellow squash (or crookneck). This would be really convenient to do on your deck. I have nothing but good things to say about organic food. Thanks for sharing your idea.

    • emilynemchick profile image

      Emily Nemchick 

      7 years ago from Phoenix, AZ

      This was very useful! I'll be planting my very first courgettes this season and this was the perfect information to start me out.

    • BWD316 profile image

      Brian Dooling 

      8 years ago from Connecticut

      Nice hub! I planted a zucchini plant in a pot for the first time this year and it did great! That is until a heavy downpour and gusty winds knocked it over splitting the stem. So that's one suggestion I would make, protect your container plants, especially since they are mobile! Voted up and useful!

    • Vanadis profile imageAUTHOR


      8 years ago from Barcelona

      Hi Rosetta, thanks for commenting. That's good to hear. I believe everyone should grow and eat as much organic food as possible. More hubs about more veggies soon :)

    • rosettaartist1 profile image

      Rosetta Ceesay 

      8 years ago from United Kingdom

      Useful. I'm into organic container gardening.

    • Vanadis profile imageAUTHOR


      8 years ago from Barcelona

      Thank you Movie Master! It was my pleasure and I'm blown away by the great response from people.

      Eagle Kiwi- That's great to hear, glad I inspired you. I set out to make gardening more open for beginners with this article, looks like it worked! Thanks for the thumbs up!

      Frann- Some excellent advice there. I forgot to mention about not getting the leaves wet, very important! Great tip with the plastic bottle too, I'll have to try it. Thank you for your comment!

      Elayne- I'd love to see that! Zucchini recipes seem like a great hub idea too. Thanks for your comment!

    • elayne001 profile image


      8 years ago from Rocky Mountains

      I am a square-foot gardener, but dabble in container gardening. I will have to try the zucchini - love baking with them. thanks for sharing.

    • Frann Leach profile image

      Frann Leach 

      8 years ago from Edinburgh, Scotland

      Courgettes are great in big containers like you show here. One tip I would add is this: The fruit will almost certainly rot if you splash them when you water (strangely, the rain doesn't seem to do this), but the part that wants the water is the root.

      If you get a plastic drinks bottle, cut the bottom off, and bury it top down in the pot pointing at the roots, you can water without getting any part of the plant wet, just by pouring the water into this funnel.

    • Eaglekiwi profile image


      8 years ago from -Oceania

      Wow ,now I am inspired!

      Why even I could grow these delicious vegetables.

      Love the pics and step by step easy to understand instructions.

      Thumbs up!

    • Movie Master profile image

      Movie Master 

      8 years ago from United Kingdom

      Congratultions Vanadis on your HubNuggets award and an excellent hub, lots of detailed information and great photos.

      Many thanks for sharing

    • Vanadis profile imageAUTHOR


      8 years ago from Barcelona

      Thanks Shayana! I hope you found it helpful :)

    • shayana mack profile image

      shayana mack 

      8 years ago

      great hub ! Thanks man, this was really amaizing.

    • Vanadis profile imageAUTHOR


      8 years ago from Barcelona

      Hi ripplemaker, thanks for the kind comment! And yes it is fun..pleasantly surprising! I'm inspired to write more :)

    • ripplemaker profile image

      Michelle Simtoco 

      8 years ago from Cebu, Philippines

      Oooh my friend will be so excited to read this hub and I will be forwarding her this one. :D

      Yes, isn't it great fun to be part of the Hubnuggets? Congratulations! And to all those who would like to vote for the Hubnuggets, this way:

    • Vanadis profile imageAUTHOR


      8 years ago from Barcelona

      Hi Flora, wow.. I didn't even realise I'd been nominated! Thanks for letting me know.

      And yes, they're one of the few veggies with different names here, eggplant being another. I'm new to gardening..and hubpages.. so I'm just sharing my experiences and small successes as I encounter them :) Thanks for your comment!

    • FloraBreenRobison profile image


      8 years ago

      Congratulations on your hubnugget nomination. I never knew zucchini had another name, although being in Canada I am used to being familiar with both American and English terminology. I've never grown zucchini before.

    • Vanadis profile imageAUTHOR


      9 years ago from Barcelona

      Hi Deborah, thanks for commenting! You should, it's great fun to grow and so easy. I also have some tomatoes on the go. I might make a hub about those next!

    • Deborah-Diane profile image


      9 years ago from Orange County, California

      I have a container garden; I think I'll have to include zucchini next spring!


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