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Growing Zucchini, also Courgette/Marrow, Summer squash

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

(Best months for growing Zucchini in USA - Zone 5a regions)

S = Plant undercover in seed trays P = Sow seed

  • 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 70°F and 95°F. (Show °C/cm)
  • Space plants: 20 - 35 inches 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

10 Nov 17, Cherie (Australia - sub-tropical climate)
Thanks for that info. I'm thought pollination was occurring, as the fruit starts growing well, doesn't that mean it has been pollinated? The fruits are about 5cm long when they go soft and squishy at the end. We do have bees around...
13 Nov 17, Mike (Australia - sub-tropical climate)
When the female flower comes out, the little zucchini grows to about 5 cm long in the first few days. If it is not pollinated, it then shrivels up or goes rotten in the end. You may have bees, but you need to look to see if you have all female flowers - or all male flowers. My zucchini crop - at the start they were mostly male flowers and at the end just about all female - 1 male 20 female.
24 Sep 17, Sarah (Australia - temperate climate)
I have just planted zucchini and cucumber I'm in Perth and the snails are eating the seedlings before they are even given a chance to start growing I have beer traps and have put egg shells around the seedlings it hasn't stopped them does anyone have any other ideas?
22 Oct 17, Jason (Australia - temperate climate)
I'm also in Perth, and I've found that used coffee grounds work well to kill snails. Caffine is toxic to snails and slugs but worms seem to love it and it won't harm pets (they don't want to eat used grinds)
25 Sep 17, Darren (Australia - temperate climate)
Try plastic milk bottles cut in half over the seedlings overnight. Also large pieces of orange peel, large enough for the snails to hide under, can help catch them.
24 Sep 17, Mike (Australia - sub-tropical climate)
Try starting them in a controlled area. In seed raising punnets - or any container -like an old used butter container, small pots etc. Use some light soil or potting mix. Put the containers in a box or tub and cover if you have to. Grow them for a few weeks like this and then plant out. Look up how control snails on the web. See if you can get some bird netting or something similar.
19 Aug 17, Kathy Mc (Australia - temperate climate)
I have red capsicum, blackjack zucchini and burpless cucumber. I planted a Dwarf eggplant in a pot. can I plant the others in a raised garden bed now.. Thanks for your help
22 Aug 17, Mike (Australia - sub-tropical climate)
I'm in sub tropical. I have zucchini plants about 4-5 weeks old - planted from seedlings. I have other zucchini plants - from seeds just coming up now. I have the round white cucumbers seeds germinating now also. I have capsicum seeds germinated for 3 weeks or so and they are hardly growing. Temps here in August should be like 10-11 at night and 23-24 in the day. This year we are about 2 degrees above both. Been 28-29 a few days in the last fortnight. Very mild winter. Seeds germinate differently during the year. Quite a few seeds were germinating in 48-72 hrs in early Feb. Now they are taking 7-10 days. All to do with soil temp.
21 Aug 17, Mike (Australia - sub-tropical climate)
Read the notes about each plant on this website. Different planting times for each.
14 Aug 17, Marie Groizard (Australia - tropical climate)
Bindis just seem to be growing on our block, we have used all kinds of killers but cannot get rid of it.....what would you suggest? Thanks Marie
Showing 21 - 30 of 245 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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