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Growing Marrow

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

(Best months for growing Marrow in New Zealand - cool/mountain regions)

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

October: After risk of frost

  • 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 68°F and 95°F. (Show °C/cm)
  • Space plants: 35 - 47 inches apart
  • Harvest in 12-17 weeks.
  • Compatible with (can grow beside): Peas, Beans, Onions, Sweetcorn
  • Avoid growing close to: Potatoes
  • Young marrow
    Young marrow

This is a large, well grown version of zucchini/courgette. Skin maybe light yellow or white. Grow on raised mounds of earth/compost. Mulch to retain moisture and reduce weed growth.

Powdery mildew can be a problem especially in humid weather.

Culinary hints - cooking and eating Marrow

Good, cut in thick slices, seeds removed and stuffed with mince or spicy vegetable mix then baked in the oven

Your comments and tips

06 Jun 18, Michelle (Australia - sub-tropical climate)
Something is eating my marrow plant, can I lift it off the ground and tie it to a wire mesh fence? Thank you
08 Jun 18, Mike L (Australia - sub-tropical climate)
Yes be careful.
25 Nov 17, Anna (Australia - sub-tropical climate)
Sadly, I didn't get any answers or help, however, I located old marrow seed and they are germinating. Pumpkins are mostly ready and big old squash are now half grown. Subtropical weather is not very kind to many fruits and vegies at this time of the year so I am finding but I am also discovering what does really well!
27 Nov 17, Mike (Australia - sub-tropical climate)
Anna - The posts just on this page go back to 31 Dec 2014 and no posting by you, asking questions. I take it you are asking about marrow, squash and pumpkins. For these you need to know if you have frosts or not. For pumpkin I would grow into the winter (they mature slower and keep longer after picking). Probably all of these you could grow (plant seeds say March/April) into the winter or plant seeds August or when you feel frosts have finished and grow in spring. Yes the weather conditions you experience have a big impact on what you can plant. I live in Bundy and you maybe Sydney. You may have lots of frosts or none at all. Very high temps or lower than normal. Big down pours of rain or none at all. In Oct we had double the record - 245 mm (since 1946) of rainfall - 550 mms this year. Although I have a near full garden at the moment - I usually would have all my plants harvested by now - far too hot usually in summer - plants suffer so much in the middle of the day. I usually grow veggies from March to Oct - then rest the ground and add mulch etc during the summer. The ground needs a rest and so do I.
01 Nov 17, Elizabeth Fekete (Australia - sub-tropical climate)
Where can I buy white marrow seed please
03 Nov 17, Mike (Australia - sub-tropical climate)
Google seed selling companies.
04 Oct 17, Jane (Australia - sub-tropical climate)
Hello. I am looking for the type of marrow that was grown in Victoria in the 1950's and 1960's. Is this the Melbourne marrow? Thankyou.
16 Sep 16, Praveen (Australia - sub-tropical climate)
I am looking for field marrow seeds
03 Mar 16, Garry (Australia - temperate climate)
Planted seedlings from Bunnings and ended up with some big marrows. Not the first time i have bought seedlings from Bunnings and ended up with something different growing. P.S. they were nice to eat.
02 Mar 15, Doris (Australia - temperate climate)
Am trying to buy Marrow seeds. Can you help me.
Showing 1 - 10 of 39 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. GardenGrow 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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