Questions this library cannot answer yet
This planner only enforces what a source backs, so some real questions have no graded answer here. The mechanism may be contested or unmeasured, or nobody has read its sources yet. Each question is tied to the guide that raised it.
A companion to What we don’t know ›, which lists the numbers we hold but don’t stand behind. This page lists the questions we have no graded answer for at all.
4 open questions across 2 guides.
Why won't my tomatoes set fruit? Heat, blossom drop, and the shade-cloth mistake
- Does too much nitrogen cause the blossoms to drop?the corpus grades night heat as the fruit-set cause; a nitrogen-to-blossom-drop mechanism has no graded card and none of the heat rule's sources cover it
Growing rhubarb for its stalks, since the leaves are poisonous
- Does a hard freeze move the toxins from the leaves into the stalks?NDSU found no study confirming or disproving it; the corpus does not carry a contested claim as settled
- Are rhubarb leaves toxic to livestock?asserted widely but found only in non-extension secondary sources, below this site's evidence standard
- Are rhubarb leaves safe to compost?nothing in the corpus grades it, and no source behind the leaf-toxicity rule addresses composting
Not recorded yet
Some facts aren’t in our plant records yet. Here’s how many plants each one is missing on.
- When it’s ready to harvest not recorded for 82 of the 106 plants grown to eat
- How to store it and how long it keeps not recorded for 86 of the 106 plants grown to eat
- Spacing in the row not recorded for 23 of the 106 plants grown to eat
- Soil pH not recorded for 44 of the 106 plants grown to eat
- How much water it wants not recorded for 41 of the 106 plants grown to eat
- How many plants to grow per person not recorded for 92 of the 106 plants grown to eat
- How deep to sow it not recorded for 15 of the 68 annuals and biennials
- Years until it bears fruit not recorded for 10 of the 33 fruit plants