Learn how to grow microgreens on a windowsill with this simple 7-step guide. Enjoy fresh, vibrant greens year-round, perfect for beginners and urban gardeners!
How to Grow Microgreens on a Windowsill: 7 Easy Steps to Fresh, Flavour-Packed Harvests All Year!
Dreaming of crunchy, peppery greens even in the depths of winter? Learning how to grow microgreens on a windowsill is one of the most satisfying projects for any UK home. These tiny plants pack huge flavour and nutrition, cost pennies, and are ready to eat in just 7 to 14 days. No garden required, no fancy equipment, just a sunny sill and a few minutes of care. Perfect for flats, kitchens, or anyone who loves fresh food. In this friendly guide we will show you exactly how to grow microgreens on a windowsill so you can enjoy vibrant harvests whenever you fancy.
Why Windowsill Microgreens Are Brilliant for the UK
British weather can be gloomy, but microgreens do not mind. A bright windowsill gives them everything they need: light, warmth, and you nearby to mist them. They use almost no space, reduce food miles, and beat supermarket packs hands down for taste and freshness. Once you know how to grow microgreens on a windowsill you will wonder why you ever bought them.
What You Will Need
- Shallow trays or recycled food containers (at least 5 cm deep with drainage holes)
- Peat-free seed compost or coconut coir
- Microgreen seeds (rocket, radish, broccoli, pea shoots, mustard, sunflower, or cress)
- Spray bottle or small watering can with a fine rose
- Clear lid, cling film, or a plastic bag (to keep humidity high at the start)
- Scissors for harvesting
Everything is available cheaply from garden centres, Wilko, or online.
How to Grow Microgreens on a Windowsill: 7 Easy Step-by-Step Instructions
Step 1: Pick the perfect windowsill
Choose a south or east-facing sill with at least 4 hours of daylight. Avoid cold draughts and direct heat from radiators.
Step 2: Fill your tray
Add 2-3 cm of moist compost and level it gently. Do not pack it down hard.
Step 3: Sow thickly
Scatter seeds evenly and quite densely (they love company). Lightly press them in. Most varieties do not need covering.
Step 4: Create a mini greenhouse
Mist well, then cover with a clear lid or cling film. Place on the sill. Check daily for sprouts (usually 2-5 days).
Step 5: Uncover and water gently
Remove the cover as soon as you see green. Mist the tops or water from below to keep the compost damp but never soggy.
Step 6: Grow on with light
Rotate the tray daily for even growth. In 7-14 days the first true leaves appear and they are ready to harvest.
Step 7: Snip and enjoy
Use clean scissors to cut just above soil level. Rinse lightly and eat the same day for maximum flavour and nutrition.
That really is all there is to how to grow microgreens on a windowsill!
Handy Tips for Success
- Sow a new tray every week for non-stop supply.
- If days are very dark, a cheap LED grow light makes a huge difference.
- Prevent mould by giving trays airflow once uncovered.
- Reuse the compost in your outdoor pots after harvesting.
- Try mixing varieties in one tray for colourful salads.
There you have it: everything you need to start growing microgreens on a windowsill today. Give it a go and taste the difference fresh really makes!
FAQ
Q: Which microgreens grow fastest on a windowsill?
A: Radish, mustard, and cress are ready in 7-10 days.
Q: Can I grow microgreens without soil?
A: Yes, many people use kitchen paper or hemp mats with great results.
Q: My seedlings are tall and floppy, help!
A: They need more light. Move them closer to the glass or add a grow light.
Q: How often should I water?
A: Keep the surface moist but not waterlogged. Mist once or twice daily.
Q: Are windowsill microgreens safe to eat?
A: Absolutely, as long as you use clean trays and organic seeds.
