Spigarello
Brassica oleracea var. italica (leaf form)
Also known asSpigariello · Italian leaf broccoli · Minestra nera · Broccolo Foglie · Liscia
Environment
The bounded range this crop tolerates.
Climate and zones
- USDA zones
- 5–9 (winter low around -29°C)
- Frost
- frost hardy
- Season
- cool (spring/fall)
Growing systems
Root mass: moderate.
Growing media
| Medium | pH effect | Retention | Bacterial surface |
|---|---|---|---|
| Rockwool (Mineral wool) | alkaline until pre-soaked | very high | low |
| Expanded clay pebbles (LECA) | neutral / inert | low | high |
| Coco coir (Coconut coir) | slightly acidic | high | moderate |
| Net pot, no medium (Bare-root) | - | - | - |
| Soil-based mix (Potting soil) | varies | high | high |
Nutrient demand by stage
NPK ratios are relative weights. EC targets shift through the plant's life.
| Stage | N | P | K | EC (mS/cm) |
|---|---|---|---|---|
| seedling | 1 | 1 | 1 | 0.7 |
| vegetative | 3 | 1 | 2 | 1.6 |
Companion-growing notes
- Heavy uptake of nitrogen. Co-grown crops with the same demand will end up deficient even at "correct" EC.
Aquaponics suitability
Compatible
Fish waste provides enough nitrogen for healthy growth. Supplemental potassium, calcium, and iron may still be needed depending on fish stocking density.
Care notes
A fast, productive leafy brassica for hydroponic growing. EC 1.2-2.0 mS/cm. pH 6.0-7.0. Temperature: 12–24°C (cool-season, like broccoli). Moderate light (DLI 12-18 mol/m2/day). NFT, DWC or media-bed systems. From seed to first leaf harvest: 5-7 weeks. Harvest the lower leaves progressively (cut-and-come-again) and the plant keeps producing new leaves from the centre for months. Unlike heading broccoli, spigarello needs no precise temperature control for head formation, since you are harvesting leaves rather than waiting for a head, which makes it easier and faster than regular broccoli. Its mild, sweet broccoli-like flavour is more versatile than kale in cooking. For the classic Pugliese dish, saute chopped spigarello with garlic, anchovy, chile flakes and olive oil and toss with orecchiette and Pecorino Romano.
Notable varieties
| Cultivar | Type | Days | Notes |
|---|---|---|---|
| Spigariello Liscia | heirloom | 55 | The smooth-leaf Calabrian type, the most-grown variety. Long narrow blue-green leaves on upright stems. Most tender of the spigariellos, best for raw use or quick sauté. Sometimes labeled "Spigariello da Foglia" in Italian catalogs. |
| Spigariello Riccia | heirloom | 60 | The crinkled-leaf type, more visually striking and slightly more bitter than Liscia. The traditional minestra nera variety. Holds texture better in long-cooked Southern Italian greens dishes. |
| Aspabroc-style hybrids | hybrid | 60 | Modern hybrids marketed as "baby broccoli" or "broccolini" hover near this category, bred from Spigariello × Chinese broccoli (gai lan) crosses. Tatsoi-leafy growth habit with small florets. Cleaner than the heirlooms but less of the traditional flavor. |