



Details
The chef's secret weapon — strikingly beautiful, fiercely peppery, and unlike any microgreen you've grown before.
FULL SPECIFICATION TABLE
General Specification
| Common Name | Red Nasturtium microgreens |
| Botanical Name | Tropaeolum majus (dwarf/nanum group) |
| Seed Type | Conventional, untreated, non-GMO |
| Stem/Leaf Color | Large, round shield-shaped leaves; vivid green with pink-to-red stems; pale yellow veining visible at cotyledon stage |
| Flavor & Texture | Bold, peppery heat with a lingering sweet finish; crisp, juicy stems and slightly waxy, tender leaves |
| Seed Count per 10g | ~77–80 seeds (≈7.7–8/g) |
Cultivation Data
| Difficulty | Medium |
| Preferred Medium | Soil or fine compost; hydroponic media not recommended — nasturtiums germinate very poorly without soil |
| Seeding Density (1020 tray) | 130–200g per 1020 tray (25×50 cm); 133g is within the mid-commercial range |
| Seeding Density (10x10 cm) | ~10–11g per 10×10 cm |
| Expected Yield | ≈160–200g per 1020 tray at 2–4 true leaves |
| Soaking | Yes: 4–6 hours in lukewarm water (overnight acceptable); seeds have a hard coat — soaking is strongly recommended |
| Blackout Days | 5–7 days (can extend to 7–8 days in cooler conditions) |
| Watering, pH & Temp | Bottom water only; pH 6.0–6.5; temperature 18–22 °C; ensure good airflow to prevent mold on the porous seed coats |
| Sprouting Time | 5–7 days after soak (germination is slower and less uniform than brassicas; 80% germination rate typical) |
| Harvest Time | 14–21 days from seeding |
Health & Nutrition
| Vitamins | Very high Vitamin C (~130mg/100g); provitamin A (beta-carotene); Vitamins B1, B2, B3, K |
| Minerals | Potassium, iron, manganese, phosphorus, calcium, magnesium, zinc, copper |
| Notable Compounds | Glucosinolates and isothiocyanates (especially benzyl isothiocyanate); lutein (~45mg/100g — among the highest of any edible plant); bioflavonoids (quercetin, kaempferol, myricetin); anthocyanins; myrosinase enzyme |
| Health Benefits | Vitamin C and natural isothiocyanates support immune defenses and respiratory health; myrosinase enzyme studied for its antimicrobial properties; high lutein content supports eye health; bioflavonoids and anthocyanins provide strong antioxidant and anti-inflammatory activity |
ABOUT
Red Nasturtium microgreens are among the most visually dramatic greens you can grow indoors — their broad, shield-shaped leaves emerge a vivid emerald green flushed with warm pink stems, and when you bite in, a clean, peppery heat blooms immediately, followed by a subtle sweetness that lingers pleasantly on the tongue. The flavour sits somewhere between watercress and mild wasabi, making a small handful of these leaves transform a plain salad, an omelette, or a sliver of fresh goat's cheese into something genuinely memorable. What makes this variety especially rewarding is the sheer theatre of it: seeds that look gnarled and unpromising germinate into pale, almost alien-looking sprouts before unfurling into lush, jewel-toned leaves that Michelin-starred chefs seek out specifically for their colour and bite. If your kitchen deserves ingredients that look as good as they taste, this is the tray to start right now.
GROWING INSTRUCTIONS
Why Choose Deliseeds?
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Untreated & Non-GMO, Conventional or Organic Safe, high-germination seeds. We also offer wide selection of certified organic seeds.
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