Growing microgreens indoors can be an enjoyable, therapeutic hobby — not to mention a nutritional boon. Indoor gardening is increasingly popular, particularly among those residing in apartments or areas with limited outdoor space. If properly cared for, a variety of microgreens can thrive indoors all year round. Here are some tips to assist you along the way.
1. Choose Your Seeds Wisely
There is a plethora of microgreen seed varieties to choose from, each possessing unique nutrient profiles, textures, and flavors. Radish, kale, broccoli, and sunflower seeds are among the easiest microgreens to grow. For novices, you’re encouraged to stick to these simpler varieties before transitioning to more complex ones like celery, fennel, or swiss chard.
2. Purchase High-Quality Soil
Microgreens require nutrient-dense soil to thrive. Choosing high-quality potting mix — preferably organic — will give your greens the kickstart they need. Many professional growers endorse a soil mix rich in peat moss or coco coir, with some perlite or vermiculite added to improve drainage.
3. Be Mindful of Sowing Density
To yield a prolific crop, you need to scatter your seeds relatively closely. A high sowing density offers several benefits; it optimizes your yield, produces stronger flavors, and curtails the risk of mould. Nevertheless, strewing your seeds excessively close can be detrimental, hindering air circulation and nurturing the conditions for diseases.
4. Water Wisely
Water is vital for your microgreens’ growth, but overwatering can lead to a multitude of issues, such as damping off disease. Damaged roots, yellow leaves, and stunted growth can also occur. Watering should be conducted in moderation, ensuring the soil remains moist but not water-logged. A misting bottle is an excellent tool for watering microgreens.
5. Prioritize Proper Lighting
Lighting is a crucial factor in growing vigorous, healthy microgreens. Natural sunlight is the best source of light, but artificial lighting — like LED grow lights — can also be a potent substitute. Your microgreens should receive around 12-16 hours of light per day. Ensure your setup can provide high-intensity, full-spectrum light for optimal growth.
6. Control Temperature and Humidity
Most microgreens prefer cooler temperatures, around 60-70oF. Higher temperatures can raise the likelihood of fungal or bacterial growth. Humidity is another crucial factor to consider. High humidity encourages the growth and spread of molds and diseases. Maintain appropriate humidity levels by adequately ventilating your growing area and controlling watering.
7. Harvest at the Right Time
Typically, microgreens are ready to harvest about 7-14 days after planting, depending on the seed variety. The best time to harvest is when the first true leaves start to form, usually appearing after the initial seed leaves. Harvesting at this stage allows you to enjoy the tender, flavorful leaves which are packed with nutrients.
8. Ensure Proper Sanitation
Preventing disease begins with a clean growing area. Sterilize your growing trays before sowing seeds to eliminate any bacteria or fungus that may harm your crop. Regular cleaning helps prevent diseases and keeps unwanted pests at bay.
9. Try Hydroponics
Hydroponics is a soil-less cultivation method that uses water mixed with nutrients to grow plants. If you don’t want to deal with soil, consider this option. It’s a clean and efficient way to grow microgreens that may yield better results.
10. Continuous Harvesting
Keep a continuous crop by starting a new tray of microgreens each week. This way, you’ll always have a fresh supply. Consider multiple trays for a variety of microgreens.
Growing microgreens indoors is a rewarding endeavor that yields nutritious results. With the right care, you can enjoy a continual harvest of fresh greens throughout the year. Just remember to select your seeds wisely, invest in quality soil, maintain optimal growing conditions and, more importantly, enjoy the process!
