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I typically grow four plants and use a infinite of approximately35 ft x 22 ft or ( 10 m x 6.7 m ) . Soil needs to be free draining , and the orbit ideally should be sheltered to prevent scathe to the plant ’s large leaf .

Green manure germination in the giant marrow bed

Preparation set about in late September with the sowing of unripened manure .

I leave this to grow all through the winter . This does a few thing which are quite important , but it is not necessary to do . unripe manure is brilliant as the type I use , Field Beans and Hairy Vetch , are know asLegumes .

3.By growing throughout the winter , you provide a solid food source for all the soil web living ( Nematodes ) and other microbe in theground .

Full grown green manure

This is good as these microbes help to cave in down fauna manure and pathogens in the soil . It helps to loose locked - upfertilizersand so off .

In early March,

We abridge down the manure correct to the ground . We leave all this development on top of the ground for a few days to set out break down .

After about a hebdomad , I dig the Green manure into the soil by handwriting . This does not have to be a fine tilled land as this comes later .

The next stage is to grow giant marrow.

It is to get a territory sample . I utilize Lancrop science laboratory to do my examination . You could just as easily do a introductory trial run with a home kit . Once you get the results of your soil test ,

you’re able to start looking at waysto adjust your territory for the optimal produce term for Giant Marrows . I add all amendments . Sometimes this might need more organic issue , so I impart a lot of manure . This manure MUST be well - rotted if you addit at this time of year .

If you ’re adding it in Autumn instead of green manure , then it does not need to be well - rotted .

green manure cut and left to rot down

Now that the ground is nearly ready , we must look at the plant themselves . With any Giant veg , it is all about the genetics of the semen .

You call for the right strain that has show genetics to acquire big . A normal marrow melodic line from a garden center field or online company can never arrive at these sizes .

Time to set a giant marrow seed.

I plant my seed to chit ( to fool away ) like youwould potatoesat the last of April . I do this by take the germ I desire to habituate , Filling a small seed tray with vermiculite or compost , and surcharge it inlukewarm weewee .

I then setthe seed on top of the dirt and dust it with some Mycorrhizal Fungi . Mycorrhizal fungi are tiny , harmless critters that bond themselves to constitute roots and help plants usewater and constitutional nutrient in the grease . They live on the roots of roughly 95 % of all earth ’s plantspecies .

This tray is now heat in a disseminator to 21ºC ( 70ºF),and the seeds can chit . This demand around 7 to 10 24-hour interval . They will then be ready to pot on into individual pots .

double digging the giant marrow bed

I dot these seed again with Mycorrhizal Fungi and plant them in small pots until they get going . We keep pot the marrow into larger pots , dust with Mycorrhizal Fungi each time .

The fungi do a fantastic chore of activate the marrows root system to build . This put up it withthe best start it could have . Each stair of its life must be as stress - free as possible . The plant life will not progress to its full potential if it gets stress at any phase .

It is now early May.

We return to the basis where the nitty-gritty will be plant . We now rotovate this flat coat to a o.k. tilth . This integrate all the feed and manure we have put onto the ground . By this degree , it has had time to expose down .

We graze this seam flat . Takingout any material large Oliver Stone that have risen to the surface . I then station four old bed skeletal system in situ ; this will be where each industrial plant is plant . you may , of line , forge all sorts of social structure ; this blocks the lead until the plant getsestablished and later is used to keep the sun from ripening themarrow .

After the last frost at the commencement of June , I plant out my Marrows . We want to get them out into the soil to start acclimatizing them .

Well rotted horse manure for giant marrows

When planting giant marrows,

The Marrow gets a o.k. dusting ofMycorrhizal Fungi , then establish and water in very well . We wrap the seam human body in fleece or plastic if there is inauspicious weather .

As the plant grows and get to vine , you require to maneuverit in the instruction you bid it to rise . We then punt the vine to the ground using cut - offplastic coathangers .

As the giant marrow plant getsbigger,

I swallow the vines with territory ; thishelps the plant anchor itself into the background and allows it to put down extra roots at each leaf node . The more root , the more the plant can take up water and food . We continued to eat up vine , and I allowed the plants to reach 16 ft in length and then stopped thetips from growingby removing the peak . I also did this with all side shoots .

The gist plant then start to blossom . We are count for a flower to appear around 10 - 12 ft away from the master roots and preferablyon   the main stem .

Growing on side runners can still produce very large marrows . I have always tried to get them on the main stem , as this is the main artery for the plant .

Setting giant marrow seeds to chit

Then should be able to produce more fluid and food for the growing yield . Once we site a female flower in the right area , we can pass on pollinate it .

The timing must be right . I pollinate mine around 48 - 50 days before the Malvern Autumn Show , where I trust to take a World Record one day .

manly and Female prime can be register by the female bloom arrest the fruit behind the bloom .

Chitted giant marrow seed

Giant marrow flower Prep

We brood or link the distaff and male flowers up before they are due to open up , this is to hold back pollinating dirt ball from crabbed - pollinating the flower . On the twenty-four hour period they open , we take multiple manlike flowers and tear off all the flower petal leaving just the stamen discussion section of the flower , we then use these and pollinate the female Pistil with the malestamen .

Once we have finished pollinating the prime , we then wed the female heyday back up again to stop cross - contamination .

As the giant marrow forms

The blossom will fall off , and successful pollenation will occur . All we postulate to dois manage the plant for the next 48 - 50 days . To do this , we need to feed regularly ; I do this using Maxicrop seaweed feed , Comfrey afternoon tea , and a sprinkling of Fishnure or 6x wimp pellets . Removing any side shoot on a regular basis and maintaining the plant ’s shape isimportant .

and remove all efflorescence and unrequired marrows . I grow one marrow per plant .   Later in the class , I will allow a mo to form . This help prevent the marrow squash from splitting

I donate all the removed marrow to erstwhile - age complex and homeless shelters . As well as keeping a few for use at home . Once a calendar week , spray your plant with ananti - fungous sprayor whole Milk River watered down 10/1 . This will help prevent powdery mildew fromforming .

young Giant marrow plant

This disease can wipe out your leaves , which are the works ’s solar panels . Without these , the marrow will not rise . The next step as the marrowgrows is to lift it out of the soilbefore it get too big .

As I have used here , you may use an insulation foam card that will also insulate against a insensate flooring or sand . This will help prevent the fruit fromrotting .

Giant marrow towards the end of summer

The plants get passing enceinte and take up a huge amount of water system . 30 - 40 liters of water will be require for each plant .

Keep your essence warm . Tucking it away on cold night and covering it over in the daytime . This will prevent the sun from ripening it . If it gets ripe , it will harden and split when have on H2O .

When it has finished produce , the sum wo n’t uprise any further .   It is important to check growth with a tape measuring rod over the next few daylight to confirm it has stopped .

Root system of a giant marrow

We should now be very nigh to show day . Do not tailor the marrow unless you think it could burst by a sudden waterspout . Let up on watering at this period too .

Try toleave the bone marrow on the plantas it will keep its weight . geld it early may cause it to lose some weight which could be all the difference of opinion on the show bench . If the essence splits , Its secret plan over

One step closer to your giant marrow.

If you have managed to keep your marrow growing without splitting , kudos . You may now show it at your local show or one of the national . This is where the big boys spiel , such as Malvern .

So now you hump what it takes to grow a giant marrow squash . It is a lot of work , fun , and sometimes heartbreak .

I hope this step - by - stepgrowing guidewill be of use of goods and services to you . If you would wish more information like this , why not chat us on our Youtube Channel or Facebook Page ? Clickthe highlighted links .

Marrow bed finished after being rotovated

I would love to see you there and chat .   For now , glad gardening . I will talk to you presently 🙂

completed preparation of the giant marrow bed

settling giant marrows into their growing spot

Plastic wrapping to protect giant marrows

Giant marrow pegging

Giant marrows in ready made beds

Differences between male and female giant marrow flowers

pollinating Giant marrow flowers

tied giant marrow flower to prevent pollination

removal of side shoots

giant marrow rejects

protecting a giant marrow from rot

summer growth

Sat on a bed of sand to insulate from the ground

Giant Marrow taping

Showing the split that stopped this one growing

Giant Marrow On The Show Bench

Giant marrows fully grown