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 S
T T T             T T T
P P               P P P

(Best months for growing Zucchini in Australia - sub-tropical regions)

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

27 Jan 09, Chrystal Iker (Australia - sub-tropical climate)
My yellow zucchini plant is growing gang busters, but the fruit gets to about 3inches then starts rotting on the flower end. I have grone them successfully before, don't know what to do?
08 Feb 09, Lauren (Australia - temperate climate)
If I plant tomorrow, is it a bit late for zucchini? It will be the 10 Feb. Thanks.
12 Feb 09, Bill Errington (Australia - sub-tropical climate)
Zucchinis rotting from the tip when small indicates lack of pollination. Transferring pollen from the male flower to the female flower ( the latter has the bulb of the vegetable below it) using a small soft artists paint brush will guarantee pollination and increase yields. There seem to be less bees around to carry out this important work.
06 Oct 16, louise (Australia - arid climate)
great reply
13 Feb 09, Mel (Australia - cool/mountain climate)
I have four zucchini plants that have grown big and strong with lots of full flowers but then the flowers die and drop off and no zucchini grows. Anyone have any ideas what i can do to help the flowers to germinate?
15 Feb 09, Lee (Australia - temperate climate)
Mel, they are probably male flowers. (Female flowers have small zucchini below them). You can help along with the pollination by transferring the pollen from the male flower to the female flower with a small brush if the female flowers drop off and no zucchini growing. The recent heatwaves may also contribute to your problem.
12 Mar 09, EILEEN KELLY (Australia - tropical climate)
HELLO,,,,I WOULD LIKE TO KNOW IF THE ZUCCHINI PLANT GROWS UP FROM THE ROOTS OR DO THEY GROW ALONG THE GROUND ,,THANK YOU EILEEN K
02 May 09, Ngaire (Australia - sub-tropical climate)
I am trying to grow zuchinni for the first time. Many of the leaves are browning, shrivelling and dying away although there are a few flowers and fruit. Is this common?
31 May 09, Stixy (Australia - tropical climate)
I live in wa Kimberley my zuchs plants look great:big green leaves with no pest invasion, however, alot of the virgining fruit withers and yellows before reaching 1-2 inches. I thought they were easy to grow..I love zucchini Ps its around 30 C with lovely cool nights and they get plenty of water....but do they need more 1.Water or 2.Phosphate ???
07 Jun 09, Helen (Australia - tropical climate)
I live in Cairns, my plants are like Ngaire (May 2) leaves are yellow/brown then drop off, the flowers are all male, no female ones. Any ideas??
Showing 21 - 30 of 255 comments

Ask a question or post a comment or advice about Zucchini

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.