How to Grow Purple Kohlrabi Using a Hydroponic System for Beginners
Basic Data
- ☀ Ideal Temperature: Purple Kohlrabi thrives in temperatures between 60°F to 75°F.
- 🌱 Germination Time: Typically takes 5 to 7 days to germinate.
- 📅 Time to Maturity: Reaches maturity in about 45 to 60 days.
Germination Steps
- Step 1: Soak the planting sponge and gently squeeze out excess moisture.
- Step 2: Place Purple Kohlrabi seeds into the damp sponge.
- Step 3: Keep in a cool area until seeds germinate.
- Step 4: Transfer the sponge with the sprouted seeds to the hydroponic system.
Growing Process
Light Requirements Table
| Stage | Light Duration | Light Spectrum | Light Intensity |
| Germination | 10-12 hours/day | Full spectrum | 100-150 µmol/m²/s |
| Seedling | 12-14 hours/day | Full spectrum | 150-200 µmol/m²/s |
| Vegetative | 14-16 hours/day | Full spectrum | 200-250 µmol/m²/s |
| Mature | 14-16 hours/day | Full spectrum | 200-250 µmol/m²/s |
- 💧 Water Pump Volume and Duration: Set to cycle every 20 minutes.
- 🔧 pH Value: 6.0 to 6.8.
- 🍼 Nutrient Ratio:
- Nitrogen: 180 parts per million
- Phosphorus: 120 parts per million
- Potassium: 200 parts per million
- Calcium: 150 parts per million
- Magnesium: 75 parts per million
- Trace Elements: Include Iron, Manganese, Zinc at 2 parts per million each as needed.
Plant Benefits
- Nutritional Value: High in fiber, vitamins C and K, and contains antioxidants.
- Distinctive Appearance: Vibrant purple bulb adds a splash of color to dishes.
- Versatile in the Kitchen: Can be eaten raw, steamed, or sautéed, offering a variety of culinary uses.
Conclusion
Purple Kohlrabi is a great choice for hydroponic beginners due to its fast growth cycle and ease of care. This visually striking vegetable is not only a delight to grow but also provides essential nutrients, making it a healthful addition to your diet.
