Really deep planting tomatoes

Discussion in 'Edible Gardening' started by JWK, May 18, 2009.

  1. JWK

    JWK Gardener Staff Member

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    I just watched the Gardeners World episode from 8th May thanks to iplayer. They demonstrated deep planting tomato plants. Strip off the seed and two or more true leaf pairs and plant them really deep. The buried stem then develops more feeding roots.

    I knew about deep planting seedlings up to the seed leaves, but this idea is new to me. I'm going to give it a go, especially as some of my tomato plants now look a bit leggy.

    Anyone done this before?
     
  2. lollipop

    lollipop Gardener

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    I haven't ever done it before-but I did see Monty doing it on GW when he was the boss.
     
  3. Kristen

    Kristen Under gardener

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    I planted mine in pots last year, leaving a good couple of inches space at the top (as there are always roots near the surface looking like they want more compost on top, and of course stems of Tomatoes try to grow roots near the compost.

    I was disappointed with how little root they actually put into the top-dressed-compost, and I figure that if you plant dead you will get roots from the stem, but the existing root ball will be planted nearer the bottom of the pot, so have less room to "grow down". No idea if it matter - and I'm sure it would be good for leggy Toms, but I'm not sure of any tangible benefit.

    Be happy to hear otherwise though.
     
  4. Alice

    Alice Gardener

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    My tomatoes do fine just planted up to the seed leaves. I can't see what benefit they would get from being planted deeper or having more roots. I think sometimes these gardening programmes have to come up with something to fill the programme. A few weeks ago they were demontrating how to take cuttings from winter flowering pansies ! Who in their right mind ?????????????
     
  5. Greenjeans

    Greenjeans Gardener

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    Here the ground doesn't warm up enough in late spring so I woudn't want to bury mine so deep but I do strip the leaves up to the tip and lay the stem down along a trench in the ground and bury it. That way I get the new root growth but it's all near the warm top of the garden; the roots grow along near the top of the soil and have more access to both warmth & moisture.

    I saw that done in "The Joy of Gardening" which was a 1970's gardening tv show with this book to go along with the series. It worked so well for me I always plant my tomatoes that way now.
     
  6. Hex

    Hex Gardener

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    I`m a bit sceptical of the benefits too.
    I find the taps go deep looking for water and the rest stay relatively shallow but spread outwards over a large area, possibly due to more oxygen being available near the surface.
     
  7. JWK

    JWK Gardener Staff Member

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    Thanks for the interesting replies guys.

    Cliare; if Monty did it then thats good enough for me (not that I don't trust Alys, but she was wearing red tights at the time :hehe:)

    Kristen, I can see that planting deep into pots may not have any benefit. I am going to try this idea but not into pots, I've got deep soil borders in my greenhouse and I want to get the plants in as low as possible, as tomatoes always seem to hit my glass roof well before the season ends, maybe I can get another truss or two.

    Alice, its wise to question these ideas, thats why I was asking on here - I might experiment with half of them as a comparison and just in case the deep planting makes them worse :dh:

    Greenjeans; thats an interesting method, I know the commercial tomato growers here in the UK keep the same plants growing for months and months, they lower the plant down on their supports each time they hit the roof so the stem lies along the ground. I thought that was to get extra height and hence more growth, but I also wonder if they grow more roots. I hadn't thought of burying the stem just below the surface and really glad to hear that works for you.
     
  8. Kristen

    Kristen Under gardener

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    "she was wearing red tights at the time ..."

    Ah, I remember that bit now. Didn't notice her planting any tomatoes though, for some reason ... :hehe:

    "I want to get the plants in as low as possible"

    Yes, good plant for that. Even if not "leggy" there won't be any flower trusses for several leaf pairs, so getting them nearer the ground will save height / gain trusses.

    I had mine in pots last year (so that's an additional 12" approx above the floor :( ). This year I have excavated the soil, and replaced with half muck, half compost, and I will plant into that. In the process I dropped the greenhouse border surface 6" below the level of the path - so I've probably gained 18" compared to last year. (I layered by tomato plants last year, but its a bit of a kerfuffle)

    " I also wonder if they grow more roots"

    Not that I am aware of - the stems are usually not actually right on the deck. Could perhaps earth them up!

    I'm not a fan of "N trusses and STOP" - I think Stop one month before first frost would be a better formula (and thus there will be a need, in most cases, to accommodate extra height.
     
  9. sweetpeas

    sweetpeas Gardener

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    Interesting, I think I may just do an experiment with this method, I two of each variety of toms this year, one can planted deep and the other how I normally would, I'll keep you updated :)
     
  10. Gwynallt Bowen

    Gwynallt Bowen Apprentice Gardener

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    I laid about 2 inches of paper from the shredder in the bottom of the pots I placed a large 2 litre lemonade bottle,( with the bottom cut off ) upside down so that the neck touches the shredded paper I planted the tomatoes up to the seed leaves,. I intend watering only throguh the bottle and top feeding the compost i don't think thers is any beneft to deep planting
     
  11. Gwynallt Bowen

    Gwynallt Bowen Apprentice Gardener

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    I laid about 2 inches of paper from the shredder in the bottom of the pots I placed a large 2 litre lemonade bottle,( with the bottom cut off ) upside down so that the neck touches the shredded paper I planted the tomatoes up to the seed leaves,. I intend watering only throguh the bottle and top feeding the compost i don't think thers is any beneft to deep planting
    [align=right][​IMG][/align]
     
  12. Kristen

    Kristen Under gardener

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    Sounds a bit like Ring Culture - water at the bottom, feed at the top. I did that when I was a lad, never thought I got any noticeable benefit.

    The thing I struggle with is how do the feeding roots cope between feeds? They get moisture, say, once a week, or maybe twice a week, aren't they going to get dessicated, or at least stressed, in between?

    What I don't know is if that approach enhances flavour? If so I'm up for it!
     
  13. JWK

    JWK Gardener Staff Member

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    I'm not sure what happens kristen, the feeding roots may dry out in-between feeds. That might be a good thing, I read that keeping tomato plants in smaller pots to begin with restricted the root growth and stressed the plant causing it to flower earlier than normal. Maybe stressing the plants may end with with earlier fruit - not sure about the long term effect or the taste though.

    Last night I repotted my tomatoes, its their last repotting before I plant them into the greenhouse border (in a couple of weeks). I'm keeping them in pots in the greenhouse so I can shift them indoors in case of late frost.

    Even with a 12" pot, I only managed to deep plant them past the first set of true leaves, maybe another 4" to 6" deeper than they were, thats not much. Maybe my plants are a bit too tall and leggy but I think this technique won't benefit much if you are growing them in containers (and definately if growing in grow bags).
     
  14. Kristen

    Kristen Under gardener

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    "not sure about the long term effect or the taste though"

    That's my No 1 question on this subject!

    Stress a plant, its natural reaction is to think it is dying an hurry to reproduce. Yup, I understand that.

    Does that make good flavour? Dunno, but I certainly would like to find out!

    One of my Tomato varieties is under-pot-size (stupid, but I thought I would get away with 9" and then into the greenhouse border, but they were my first batch of sowings back in Feb. Twit that I am! so a bit yellow in the leaf and undoubtedly getting less water than the other two, later-sown, varieties in 11" pots. Not really a good comparison as not the same varieties, but ... maybe I can remember the flavour from last year and judge if they are better this <DreamsOn!>
     
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