A tomato transplant goes into the ground deeper than it grew in its pot, buried up to its first leaves
A tomato transplant goes into the ground deeper than it grew in its pot, buried up to its first leaves. It does not go in at the soil line it came out of.
Well established A person has checked it against its sources. If you skip this, it still grows, just less well. The planner suggests it.
How it works
A tomato's stem forms roots along whatever length of it is buried in moist soil. Setting the plant deep therefore converts stem into root, and the plant ends up with a larger root system than the one that came out of the pot.
What to do about it
When you set it out, bury the stem up to the first leaves, or deeper still if the plant is leggy from being started indoors. This is the one seedling you plant lower than it was growing.
How much it matters: Not quantified by the source read. It gives the depth and the reason. It gives no yield or root-mass difference against a plant set at its pot line, so no figure is stated here and none is estimated.
The evidence
Evidence: checked against 1 source in the research-based literature.
The source
The stem of a tomato transplant may be buried in soil up to the first leaves (or more if the plant is spindly)
Plus one working note on how the sources were read. Every note is in the data download.
Where this rule stops
TOMATO ONLY, and the two exclusions are deliberate. The same page tells you to set a PEPPER so the soil reaches its cotyledons, a real published depth, but gives no reason for it, and rooting along a buried stem is specific to tomato. A rule at this confidence states its mechanism, so pepper waits for a source that gives it one of its own. EGGPLANT is named in the page's title and given no setting depth at all; reading the title as though it were the text is how a claim reaches a crop nobody wrote about.
Plants it applies to · 1
Read next
How this rule has changed
Every change is dated, newest first. The full record, with each reason, is in the data download.
- Wording made clearer
- Details updated
- Added to the rules
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Cite this page
Milpa Gardens. “A tomato transplant goes into the ground deeper than it grew in its pot, buried up to its first leaves. It does not go in at the soil line it came out of.” Evidence grade: Well established. https://milpa.garden/rules/tomato-transplant-goes-into-ground-deeper-than/
A garden planner built on graded evidence. Every claim states its evidence grade and links its sources on the page. Cite it with the grade, and add the date you read it.
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How we grade evidence
- Well established
- The rule names its mechanism and is settled, by sources a person has read and checked or by plain arithmetic and geometry.
- Promising
- The mechanism is named and the literature backs it. A few questions are still open.
- A good hunch
- Plausible by its mechanism, but field studies are thin, so treat it as a lean.
- Contested
- The evidence points both ways, or no study has tested it, so the planner does not enforce it.
- Refuted
- The claim did not survive its sources. It is kept so the folklore can be answered.