Growing Microgreens at Home: A Beginner's Guide for Small Spaces
Spring is genuinely the perfect time to start growing microgreens indoors. You don't need a garden, a greenhouse, or even much space — a windowsill, balcony, or corner of a patio works brilliantly. Whether you're working with a tiny flat or a modest balcony, microgreens grow fast, taste incredible, and cost very little to produce.
Common Beginner Mistakes to Avoid
Most people struggle with microgreens for the same few reasons. Overwatering is the biggest culprit — your containers need to dry out slightly between watering. Check the soil with your finger; it should feel damp, not soggy.
Using garden soil instead of potting compost is another common trap. Garden soil compacts, drains poorly, and often contains pests. Always use a quality peat-free potting mix instead. Choosing containers that are too small restricts roots and means you'll be watering constantly. And honestly, don't try to grow ten varieties at once when you're starting out — pick two or three and master those first.
Getting Started on a Budget
You genuinely don't need expensive equipment. Repurposed yoghurt pots, egg cartons, and small containers work perfectly for starting seeds. You can make your own potting mix by combining peat-free compost with perlite and garden sand — it costs a fraction of buying ready-mixed bags.
Buy seeds rather than plug plants. A seed collection with 1,700+ seeds across 21 varieties costs around £8–12 and gives you options for the whole year. Collect rainwater in a bucket or butt if you can — it's better for plants than tap water and completely free. These small choices add up to real savings.
Light: The Most Important Factor
Most edible plants need at least 6 hours of direct sunlight daily. In the UK, south-facing windowsills and balconies get the most light. If your space gets less than 4 hours of direct sun, focus on leafy greens and herbs, which tolerate partial shade better.
If you're serious about year-round growing or your space is quite shady, a compact LED grow light running 14–16 hours daily replaces sunlight entirely and costs around £55–70 for a reliable setup.
Problem Solving
Yellow leaves usually mean overwatering or a nutrient deficiency. Check your drainage first — is water sitting in the bottom of the pot? If yes, repot into something with drainage holes. If drainage is fine, feed with a balanced liquid fertiliser every two weeks.
Leggy seedlings (tall and spindly) are reaching for light. Move them closer to a window or add supplemental light immediately. Aphids can be blasted off with a strong spray of water from a fine mist spray bottle (around £6–9). Blossom end rot on tomatoes comes from inconsistent watering — maintain even moisture and it stops.
Your First Steps
Start simple. Choose one or two varieties you actually want to eat. Use proper potting compost with good drainage. Place your containers where they'll get the most light naturally. Water carefully — let the top inch of soil dry slightly between watering. Label your pots with bamboo plant labels (about £5–7) so you know what you've planted and when.
Once you see results with your first batch, scale up. There's nothing complicated about this — it's just getting the basics right and learning as you go.