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gixxerific
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Location: Wentzville, MO (Just West oF St. Louis) Zone 5B

Does container size matter that much??????????!!!!!

I am no newbie to gardening but I noticed something this year.

I had a BUNCH of starter tomatoes that were ready to put in bigger pots. I started all of them in 6-cell starter packs you would find at the nursery's. They were all the same size for the most part, really all the same size except for a very small number that were not doing well but that was only a VERY FEW and only one variety.

I up-potted them all at the same time. I ran out of 4 inch pots and had to put some in 5+ pots. Only about 1/4 of them were put in the bigger pots. All were placed in the same soil mix. Same lighting, same everything.

So why are the ones in the bigger pots at least 25% bigger and beefier than the ones in the smaller pots. The variety range here is all over so that in my mind shouldn't even be taken into consideration. Like I said they were all the same before up-potting. This was noticed very soon, and with time they seem to be getting even bigger.

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Kisal
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I've always moved tomatoes from 2" pots to 6" or 8" pots, and from there to their final containers. They grow roots fast enough that, unless they're being terribly overwatered, there is little chance of root rot.

I do, though, wait until the roots fill the pot the plant is in, before I move it to a larger size.
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams

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rainbowgardener
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More soil = more nutrients available. I know that every time I up-pot mine they take off like crazy. Transplanting things is supposed to set them back with transplant shock and all, but the tomatoes love being moved to bigger pots!
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gixxerific
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Location: Wentzville, MO (Just West oF St. Louis) Zone 5B

Makes sense RBG I remember every time the got a bigger home last year they went like gang busters.

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jasbo
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Location: Southern Oregon

I'm so new to all this that I can't possibly offer anything here, except to say that I appreciate your report.

I had no idea it could make a difference, but I have more tomatoes than I can fit into my 4-inch pots and will be forced to put some into smaller ones. I'll try to chime in with my results.

Jim

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