Growing Zucchini, also Courgette/Marrow, Summer squash

Cucurbita pepo : Cucurbitaceae / the gourd family

Jan F M A M J J A S O N Dec
S             S S S S S
T T             T T T T
P                 P P P

(Best months for growing Zucchini in Australia - temperate regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed

September: Frost tender

  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 21°C and 35°C. (Show °F/in)
  • Space plants: 50 - 90 cm apart
  • Harvest in 6-9 weeks. Cut the fruit often to keep producing.
  • Compatible with (can grow beside): Corn, beans, nasturtiums, parsley, Silverbeet, Tomatoes
  • Avoid growing close to: Potatoes

Your comments and tips

11 Oct 13, Peter Stevens (Australia - temperate climate)
The zuccinni on my plants have a yellowy End on them and go all soft and rot at the end of them Can someone give me a solution to this problem
17 Oct 14, (Australia - temperate climate)
Peter - I fixed that problem by adding lime to the soil.
12 Oct 13, Helen (Australia - temperate climate)
Add some potash/sulphate of potash to strengthen the flowers. It can be added to a watering can or sprinkle around the plants and watered in
12 Oct 13, Melinda (Australia - temperate climate)
Hi Peter I'm absolutely no expert, but I did find info only today on yellowed, soft zucchinis meaning the plant needs help with pollination. It might not be the issue, but have a search for pollinating zucchini plants and see. There's many helpful videos and pollinating seems easy to do. Good luck, ~Mel
12 Oct 13, Steph (Australia - temperate climate)
I was watching Phil Dudman on this exact issue just now. Sound s like the pollination problem. Google his name and zucchini or corgette and there is a youtube clip. Unfortunately you can't post the link here.
21 Sep 13, Mark (Australia - sub-tropical climate)
I think Brisbane is sub tropical/tropical. I think you are going to need the seeds they should be in the fruit unless the cultivar you have is an F1. Then it would be pot luck what you get. I'm growing heirloom varieties and will be harvesting the seeds from them. If you want some let me know.
04 Dec 20, Bridget Larsen (Australia - sub-tropical climate)
HI Mark, I would love some trombocino seeds if you still have any left. I live in Brisbane so sub-tropical is my season. Thanks in advance Bridget [email protected]
29 Aug 13, Daisy (Australia - temperate climate)
Hi, I put my zucchini seeds in wet tissue in door along with tropical tomato seeds, cherry tomato seeds, capsicum seeds, bean seeds to help them to germinate. It turned out all the other seeds have germinated except zucchini and cherry tomato. Could anyone tell me the reason please? I am in Adelaide..
10 Jul 13, hamid (Australia - arid climate)
hi may i know why we couldent plant zuccini with potatoes?
05 Jun 13, Meg (Australia - temperate climate)
I've had the same problem, I added extra compost to the bed the following season and planted both zucchinis and squash and found my zucchini went dark green and were great but now my squash won't go yellow!!!! Lack of sun light maybe?
Showing 141 - 150 of 255 comments

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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