What's Wrong With My Microgreens? Free Diagnostic Quiz

The What's Wrong With My Microgreens? Diagnostic Quiz walks you through 15 quick checks on what you're seeing, smelling and feeling in your tray, then matches your answers against documented grower research to name the most likely cause. 

It's for anyone staring at a tray that doesn't look right and wants a specific answer not another generic list of common microgreens problems. 

Home growers with a single windowsill tray and small sellers running a dozen trays a week use it the same way: answer honestly, get a diagnosis, fix the cause.

What the Quiz Diagnoses and How the Scoring Works

The quiz sorts your tray into one of ten specific microgreens problems, or tells you it's healthy if nothing stands out. Each question asks about something checkable right now, like misting a fuzzy patch or sniffing near the tray base. 

Every answer adds points to one or more of ten categories: mold, damping off, leggy growth, temperature stress, overwatering, underwatering, poor germination, uneven growth, yellowing and bitter overmature growth. 

A category only becomes your diagnosis once its score hits 4 or higher, so one stray answer can't tip the result toward a problem your tray doesn't have.

The scoring draws from 36 grower education sources and peer reviewed research rather than one grower's opinion, which separates it from a generic microgreens problems checklist that flags everything at once.

How to Work Through the Diagnostic

Questions appear one at a time behind a progress bar, and each is multiple choice with two to four options. Some are diagnostic, asking you to check the tray right now like whether fuzz near the base flattens when misted or springs back once dry. 

Others cover your setup: airflow, light distance or the room's temperature range. Picking an answer opens an explanation of what it means and its source, so you learn the reasoning as you go.

Answer based on what's actually in front of you, not what you're hoping to see since rounding a moldy patch up to "probably root hairs" pulls the result away from the real problem. Any answer can be revised, and the last question swaps "Next" for "See My Results."

How to Read Your Diagnosis

Your top result shows up as a named category, such as Mold Overgrowth or Leggy Growth with a plain description of what caused it and what to do next. 

When two categories tie for the highest score the quiz shows both and notes that combined problems happen often, overwatering feeding straight into mold being the most common pairing. 

A Full symptom breakdown panel expands below the main result to list every category that scored above zero so why are my microgreens turning yellow gets answered even when it isn't your top diagnosis.

One caveat runs under every result: it reflects grower education research not a lab test. Once mold gets confirmed instead of root hairs, the standing advice is to toss that tray rather than eat from it.

Who This Diagnostic Is Built For

Anyone who's typed why are my microgreens moldy into a search bar late at night fits the target audience, right alongside a grower racing trays toward a farmers market deadline who needs to catch damping off before it spreads. 

Someone dealing with microgreens not germinating on schedule needs to know if the cause is old seed, temperature or moisture and the quiz separates those causes in a couple of minutes.

Real World Use Cases and Practical Tips

Picture a windowsill grower who spots white fuzz on day three and can't tell if it's mold or root hairs. The water and smell tests settle it inside the first two questions: root hairs collapse and re-puff with moisture, while mold barely reacts and tends to smell musty.

A second case looks different. A small commercial grower notices one tray came in thin, pale and floppy next to every other tray from the same batch, and the quiz turns up an answer close to why are my microgreens leggy, tied to a grow light sitting too far above the tray. 

Moving the light to six to twelve inches away and uncovering it the moment sprouts appear fixes it by the next cycle.

Frequently Asked Questions About Microgreens Problems

How do I know if it's mold or just root hairs?

Mist the fuzzy patch lightly. Root hairs flatten under water and puff back up once dry while mold barely changes either way and often carries a musty or sour smell. Fuzz spread onto the leaves themselves points to mold instead.

Can you eat moldy microgreens?

No. Once mold gets confirmed rather than root hairs, discard the whole tray instead of eating from it since mold can spread through the root zone in spots that aren't visible yet.

Why won't my microgreens germinate?

Seeds that blow past their expected germination window usually two to four days, are commonly dealing with old seed stock, cold temperatures or inconsistent blackout moisture. Run a quick germination check before sowing a full tray again.

Why is my microgreens growth uneven across the tray?

Uneven growth almost always traces back to uneven light, uneven moisture or seeds that clumped together instead of spreading out evenly. Rotating the tray and spreading seed more evenly by hand clears it up within a cycle or two.

A tray of microgreens can go from fine to unsalvageable within a day or two and guessing at the cause burns the window needed to fix it. 

Fifteen quick answers replace that guesswork with a specific diagnosis and the fix that matches it whether that's a water test that rules out mold in under a minute or a light adjustment that stops the next batch from stretching thin. 

Run the tray in question through the quiz now while there's still time to save it.