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Old 08-04-2007, 12:36 PM
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Default Tomato grow bags - drainage or not?

i got the new large-type tomato grow bags and pierced holes in the bottom as i read it on page 37 of the free booklet with this months GYO "more crops less space". Then i read on the actual grow bag to "avoid piercing holes in the base". Well, which is it?
I tend to agree with NOT cutting holes, cause then the food and water wont flush.
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Old 08-04-2007, 07:54 PM
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Hi G&G,
Whilst it won't flush the food thru you get a build up of salts in the compost & when you water the roots are sitting in a warm bog or pond (depending how heavy handed you are) and you run the risk of droowning the poor things .

For healthy growth roots in compost/soil need moisture, food and just as important Oxygen this is pulled in to the compost as it dries out so I would say peirce the bottoms after all tomato feed is a lot sheaper than a failed crop.
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Old 08-04-2007, 11:45 PM
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Have always cut a few slices in the bottom / side of the grow bags for the reasons said by Nick. To ensure you don't wash out the nutrients make sure you water gently and don't jet the compost.
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Old 11-04-2007, 12:03 AM
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You would have to make drainage holes, thats why flower pots have holes in. Go with your instincts.
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Old 12-04-2007, 01:14 AM
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I make small slits in the sides, not the bottoms. This gives you a "reservoir" of water which you will need if the weather is hot. You do need some drainage, or the whole bag may get waterlogged and the roots will rot.
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Old 12-04-2007, 01:16 AM
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I thought that growbags came with a row of 'breathing holes' at each end?
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