Mixed Planting
I picked up a book in the new library in Moyross in Limerick last week called "The Edible Container Gardener" by Michael Guerra and it inspired me to come home and immediately start planting up some larger containers with a variety of fruit and other plants. The book is aimed at people with very small gardens who want to grow loads of food organically. For some reason it deals quite a lot with planting in the ground but there is a huge emphasis on containers so it is still very useful.
The main idea that I have gotten out this book so far is the idea of "living soil". The author states that the soil in small pots cannot really be said to be alive because it can't support a proper balance of insects and microbes (and possibly other things) who would normally do the job of aerating the soil and breaking down debris etc. The book doesn't seem to explain why this is the case but I can imagine that the ecosystem present in soil needs plenty of room and possibly more constant conditions in order to be successful . The temperature and amount of water in a small pot will vary more readily than the ground so this may make it hard to build up various colonies of microbes and insects.
The fact that it is difficult to maintain a living soil in a small container means that normal garden soil is not suitable to use. Because it isn't filled with enough animals to aerate the soil means that it compacts down too quickly. This presumably means that the roots of the plant in the container will have a hard time collecting air and water from the soil and so the health of the plant suffers. So, in a small container it is recommended to use a commercial compost mixed with your own home made compost, manure or something else similar. But using lightweight composts means that it is harder to retain moisture and nutrients and this has its own problems.
What I got out of this part of the book was that it is a good idea to use large containers where possible. That way you can use your own garden soil mixed in with your own home made compost.
Another interesting point in the book so far was the idea that you should plant things of different heights in some close proximity to one another. Within a particular system (a container or a garden) there should be some tall things, some medium things and then some low growing plants. This is based on the ideas of permaculture and presumably the different plants offer support of some sort to one another.
So I when I came home from looking after our horse I went straight out the back and looked around at what small containers could be incorporated into a larger one. When I had chosen some plants I waded through our garage until I found a large fish box that would suit the plants I had chosen. We found this a few years ago on a beach in the West of Ireland and it has been used for salads, tomatoes and other things that I can't remember. It was decommissioned last year for some reason so I'm glad to get it back in use.
It never occured to me before to plant our fruit in groups and with other edible crops, but when I read this book it suddenly seemed like a perfect idea.
I chose the following to go in....
Fruit - Redcurrant, alpine strawberry, cape gooseberry,
- Salads - Spinach, rocket, rainbow chard,
- Herbs - Chives, sage, rosemary,
- Flowers - borage, primrose and snow drops.
In all there are twelve different types of plant in this box and the idea is that there will be a low growing cover that will almost act as a mulch, keeping in moisture and out keeping out weeds. Then there will be a middle layer which will provide a little shade to the lower down salads which don't like too much sun. These two layers will also keep the soil a little cooler than it might otherwise be and this suits redcurrants well as far as I know. The cape gooseberry and the redcurrant will provide some shade too and will also hopefully support each other. Both are prone to wind damage and so I planted them close enough together so that they will touch when they are a bit bigger and hopefully lessen the effects of wind on each one.
I chose plants which don't need lots of fertility or too much sun so that they will all be happy in the same place. Another thing to consider is whether they all want the same nutrients or will they each use a bit of the soil that the other doesn't really need. This is something I don't know
much about but I'll just see how this box goes and hopefully learn from that. It seems that a mixture of plants may be good from this point of view as well. If you plant all the one type of crop in this box there will be a larger demand for particular elements of the soil whilst other elements may go unused.
I put in the primrose so that when all the fruit are still waking up from the winter and not doing much there will be some colour in the box. These are my favourite flowers and so I really just want an excuse to put them everywhere :) . The snowdrops are for the same reason and there are seven of them. I'm hoping that the borage will fall down in front of the box and blend it into the garden a bit better.
The salads are also acting like a catch crop. At the moment the fruit and herbs are quite small so there is space left between them. Planting faster growing crops like salads between the slower growing ones means you get more use from your space and you also prevent weeds from having space to set up home. These salads will get squeezed out later during the summer but I can plant more in the autumn when things are dying back again.
Here are some pictures of another smaller planting with an alpine strawberry, peppermint, mint, spearmint, rocket, spinach and chard. The
mints might completely overtake the strawberry but again, we'll just have to wait and see. (click on the pictures for larger versions). I turned my back on the basket that I was getting ready to plant and came back to find that Kaboodle had taken up residence there. This caused a serious delay in proceedings as she decided to look her cutest and most forlorn so that we wouldn't toss her out. We did in the end but not before making her an alternative bed from an old wine box. She loves it....phew.
