Microgreens are the most nutrient-rich plants you can eat and a best seller for Shannon

A Jang seeder is pushed along by hand, taking seconds to evenly distribute dozens of seeds in neat, straight rows.

She also has a bespoke fork with extra-long tines. It's another important contributor to the fluffy soil, which sits 10cm above the walking tracks.

“I don't double dig, but I do use my big fork, which goes about 400mm deep, creating more airflow in the soil.”

Shannon's most nutrientrich, easy-to-grow crop

Snuggled away at the back of Shannon's original tunnel house are shelves of microgreen crops, tray after tray of colour and the most nutrient-rich greens you can eat.

One of the prettiest is a radish called Rambo. If you're wondering why such a delicately violet-red little plant has such a violent name, it's all in the taste. There's an initial flash of fresh, earthy-tasting greens. Half a second later, bam! A burst of heat hits your palate, your tongue, your nose.

Microgreens are one of Shannon's best-sellers, cossetted for maximum goodness. There are trays of thickly sown broccoli, coriander, kale, radish, pea shoots, amaranth, and red cabbage seeds sitting on heat pads, which help them to burst into life as quickly as possible. Once plants make it above soil level, they're watered and fed for around 5-10 days before harvest, depending on the time of year.

1. The soil tilther churns compost and vermicast into the top of the soil.

2. The fluffy texture is well aerated; garden soil sits 10cm higher than the walking tracks.

3. Microgreen seeds beginning to germinate.

4. Pea shoot greens.

5. Greens are harvested 5-10 days after germinating.