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

01 Dec 11, Noleen (Australia - sub-tropical climate)
Hi my question is first time growing zucchini's and we are having a grub/worm problem, the zucchini starts growing very well then within a day the turn yellow and when we pick it off it is full off little worms that go all the way into the bass, i dont know what to do any ideas would be really great thanks.
04 Dec 11, Dan Webster (Australia - sub-tropical climate)
Hi Noleen, I'm having the same trouble as you. Can anyone help us?????? Was getting excited about picking some, then overnight they went yellow and squishy. As with Noleen's mine were also riddled with grub/maggot looking things.
21 Nov 11, Nicole (Australia - temperate climate)
First time really growing veges in my back yard. We attempted tomatoes earlier in the year with a bit of success, so graduated to lettuce, carrots, tomatoes, cauliflower and zucchini. The zucchini is going great guns! We have had heaps of fruit come on. ONLY now, for some reason, we are getting weird shaped ones! They start out narrow, and grow fatter on the ends! Whats happening to my lovely zucchini?!
26 Nov 11, Alana (Australia - temperate climate)
The bulbous shape comes from varying water levels. When they haven't had much water for a while, they grow more slowly and thinner, then there is a downpour or extra watering, they shoot out and the new bit grows fast and fatter. Happy gardening.
23 Oct 11, marcus (Australia - temperate climate)
do i plant zucchini seeds pointy end down or round. does it matter? thanks marcus
29 Oct 11, Pru (Australia - cool/mountain climate)
Marcus, it does not matter. I have planted seeds lying flat and they all sprout.
14 Sep 11, Jian (Australia - temperate climate)
My challenge with growing zucchini is the opposite. I had plenty female flowers but not enough male flowers opening at the same time (they are always behind) so the female flowers didn't get fertilized and the fruits will drop before growing any bigger. What is the solution?
09 Oct 11, Pru (Australia - cool/mountain climate)
I agree with Ben, last year I used a cotton bud to help pollinate my female flowers. Worked really well, heaps of fruit.
23 Sep 11, Ben (Australia - temperate climate)
You can try collect the pollen from a male flower and hand pollinate the next female ones.
26 Jul 11, Jennie Gardiner (Australia - tropical climate)
I planted 2 black jack zucchini about 7 weeks ago as well as 2 yellow squash and have noticed the one of the two zucchini plants has gone very yellow and the leaves have started to die. There is no mould on the leaves and no obvious pests eating anything. The whole plant is dying. The other zucchini plant though is very very healthy and I've just gotten my first female flower. I had 2 squash plants planted nearby which also turned a sick yellow colour and died. I've sprayed for disease and pest but the plants just keep dying. Is there a chance that I'm overwatering them?? I'm in costal North Queensland.
Showing 171 - 180 of 255 comments

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