Young edible plants – do you know all of them?

An earlier article, Microgreens and Weight Management: What the Research Shows, looked at what microgreens can and cannot contribute to a weight-management diet. This one deals with a more basic question: what actually separates sprouts, microgreens and baby greens? The distinction is not obvious, and it matters: the three differ in growth time, harvest stage and growing medium. The final section collects a set of facts about microgreens. 

What does science say about young edible plants?

Microgreens – In the academic article Microgreens Production: Exploiting Environmental and Cultural Factors for Enhanced Agronomical Benefits“Microgreens are defined as small plants with two fully developed cotyledons, a pair of small true leaves, and a central stem.Microgreens are an emerging crop and are tender seedlings harvested at the emergence of the first true leaves”¹. 

Sprouts – According to researchers, sprouts are “consist of shoots and roots obtained from germinating seeds that grow for 2-7 days and are harvested when the cotyledons are still immature and the first true leaves have not yet appeared”²

Baby greens – in LED light effect on growth, pigments, and antioxidants of lettuce (Lactuca sativa L.) baby greens article scientist describes baby greens as „Young and tender edible leafy vegetables and herbs known as baby greens are harvested shortly after the true leaves emerge and before the eighth true leaf stage, typically within 20 to 40 days after germination. They are nutrient-dense, providing a high concentration of vitamins, minerals, and antioxidants”³. 

Comparing microgreens, baby greens and sprouts 

The biggest difference between microgreens, baby greens and sprouts is in the size of the plant and time of growth. Baby greens are a later stage of microgreens.  Microgreens are older than spreads but younger than baby greens. Therefore  microgreens and spreads are consumed at an immature stage. Sprouts are just germinated seeds, which grow mainly in water and darkness. Microgreens need light and a substrate, which limits the risk of bacterial contamination.

Comparison table:

Type	Growth time	Harvest Stage	Medium
Microgreens	7-21 days	First true leaves	Soil/light
Sprouts	2-7 days	Before true leaves	Water/dark
Baby greens	20-40 days	Up to 8 true leaves	Soil/ light

Do you know that…?

• Microgreens were first used in the late 1980s by chefs in high-end restaurants in San Francisco, USA.
•  They grow really fast, what makes them perfect for indoor growing
• Microgreens are fresh, healthy, tasty, rich in nutrients and have high quality⁴
• They are often marketed as a “new generation of superfoods” or as a “functional food” — wording that comes from the trade and the popular press, not from any measured property of the crop⁵
• There are some vegetables that cannot be consumed as microgreens, because they have toxic components found inside the nests and/or leaves
• The best moment for eating microgreens is right after cutting them, then they have the biggest nutritional value 
• For a number of nutrients, and in many species, microgreens have been measured at higher concentrations per gram than the mature plant — but the advantage depends on the species, the growing conditions and the specific nutrient, and it is not uniform. An earlier version of this bullet said flatly that “micro-plants are more nutrient dense than their mature counterparts”, which is broader than the evidence supports; see microgreens vs. mature versions for what the studies actually measured, including one crop where calcium was lower in the young foliage.

Sprouts, microgreens and baby greens are often treated as one category. In practice they are three different crops, separated by how long they grow, the stage at which they are cut, and whether they are raised in water and darkness or in a substrate under light.

1. Dubey, S., Harbourne, N., Harty, M., Hurley, D., & Elliott-Kingston, C. (2024). “Microgreens Production: Exploiting Environmental and Cultural Factors for Enhanced Agronomical Benefits”. Plants, 13(18), 2631. https://doi.org/10.3390/plants13182631 ↩︎
2. Definition as given in Dubey et al. (2024), Plants 13(18), 2631. For the EU legal definition of sprouts see Commission Implementing Regulation (EU) No 208/2013, Article 2(a): the product of germinating seeds and developing them in water or another medium, harvested before true leaves develop and intended to be eaten whole. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013R0208 ↩︎
3. Sumi, M.J., Jahan, N., Thamid, S.S., Tarik, M.E.I., Hassannejad, S., Rahimi, M., & Imran, S. (2025). “LED light effect on growth, pigments, and antioxidants of lettuce (Lactuca sativa L.) baby greens”. BMC Plant Biology, 25(1), 582. https://doi.org/10.1186/s12870-025-06621-8 ↩︎
4. Dubey, S., Harbourne, N., Harty, M., Hurley, D., & Elliott-Kingston, C. (2024). “Microgreens Production: Exploiting Environmental and Cultural Factors for Enhanced Agronomical Benefits”. Plants, 13(18), 2631. https://doi.org/10.3390/plants13182631 ↩︎
5. ‘Superfood’ and ‘functional food’ are marketing and industry terms, not regulatory categories. No source is cited for this bullet because it records how microgreens are described in marketing and popular coverage, not a research finding — an earlier version of this footnote said we were reporting how the literature describes microgreens, but supplied no literature to support that. For what has actually been measured, see our Science Library. ↩︎