And so I planted the garlic

When I clear the next bed it will be time to plant the overwintering onions. I choose to plant my onions in the autumn for two reasons; the first is that I like having the beds filled overwinter. It’s nicer than having a bare garden to look at. The second is that they are harvestable about a month earlier in the summer, which means their bed is available for replanting a month earlier, and that works for me.

When I set about blogging The Peat-Free Diet it was an experiment, an journey into the unknown. My aim was to provide gardeners who want to garden without the use of peat with the information they need to do so, and the book evolved into a gardening primer that assumed peat was not on the menu. My love of science made more of an appearance than I had anticipated and there are plenty of big words to cope with, but it is my hope that they are presented in such a way that they are not hard to swallow.

Potting on

It’s at this time of year, I think, that a polytunnel or greenhouse really comes in handy in the garden. Over the summer it may just be a tangle of tomato vines – productive, but a space that you really only go in to keep up with the watering chore, or to harvest ripe tomatoes. You know you’re going to come out with green stains on your clothes and hands that smell funny – tomatoes are like that. Those tomatoes will hang on longer into the autumn than you thought they would, and by the time you’ve cleared out the polytunnel the season will be so far advanced that it will be cold and dark and your crop of overwintering salads will barely be growing – just marking time until the days are long enough for them to actually grow.

Sowing seeds is often the first gardening task of the year, and a favoured way of propagating plants because it’s very cost-effective. It’s the first stage in many plants’ lives and seeds want to grow, it’s their reason for being. And yet some gardeners are intimidated by seed sowing and avoid it where possible and others struggle to grow plants from seed successfully in peat-free compost. So I’m going to begin The Peat-Free Diet with a look at what happens when we sow seeds, the best way to go about it, and how to achieve a good success rate.

Everywhere I go lately, I seem to be tripping over the idea of allelopathy. The amaranths in the picture above might look like pretty, harmless and useful plants – but they’re hiding a darker secret. During our class field trip to the Eden Project in December I discovered that they produce chemicals that can inhibit the growth of other plants nearby. This is allelopathy – chemical warfare that gives plants a competitive edge over their neighbours.

We’ve had the Hydroponicum for over a year now. It has kept us supplied with salads and stir-fry veg, and I’ve grown one or two more experimental crops as well. Not everything I have tried has been successful. My spinach bolted (I’m not sure why, and I haven’t tried again yet). Alliums don’t seem to like germinating in the hydroponic seedling tray, and coriander downright refused. Coriander seedlings will grow hydroponically, though, so I may try allium transplants at some point.

One of the great joys of spring is seeing trees leaf out and bloom. They bring so much joy, and do so much for us, and yet are rarely valued as they should be. In particular, ancient trees are wondrous, magical things. Impressive and complex structures, they have lots of nooks and crannies in which wildlife can find a home. As fungi feed on the tree they provide food for woodland creatures, and a hollowed out trunk provides shelter. Although ancient trees are in the final stage of their life, and technically in decline, they have a lot to give, and can go on living for a long time, depending on the species.

I’m hoping to go and see The Martian soon, one of the few films to feature a botanist as the hero. Astronaut Mark Watney is one of the first humans to set foot on Mars, but accidentally gets left behind and has to survive on his own – and to do so he grows potatoes. He wouldn’t be the first person (or even population) to rely on potatoes for survival, but here on Earth there’s a slight snag. The potato (Solanum tuberosum) has an arch nemesis – late blight, caused by an organism called Phytophthora infestans. It cuts down both potatoes and tomatoes, and was the biological cause of the Irish Potato Famine in the 19th century.

Once the cool chillies were removed from the planters at the front of the house, it was time to put them to their intended purpose – a high rise herb garden within reach of the front door.

Three minutes of loveliness

The idea that we should be gardening without using peat is not a new one, at least here in the UK. I have a copy of ‘Gardening Without Peat’, published by Friends of the Earth in 1991. It explains that our exploitation of peat bogs is using up peat faster than it is being formed – we should consider it a non-renewable resource. The destruction of the peat bogs is causing a decline in biodiversity and allowing carbon dioxide to escape into the atmosphere to add to our climate woes.