Growing a vegetable jungle

One thing which I didn't mention in my previous round-up post was the latest on the Three Sisters bed. That's because that's where most of the interesting things have happened in my absence and I felt it deserved a post (and a pic-spam) of its own.

For those who don't have a slavish devotion to my back-catalogue, the Three Sisters is based off an Iroquois tradition of growing corn, squashes and climbing beans together. The idea is that the beans fix nitrogen from the air into the soil, benefiting the corn and squash, the squash covers the ground with big leaves, preventing weeds from impacting the tall beans and corn, and the corn provides a climbing frame for the beans and a windbreak for the squash. It's a win-win-win. In theory.

Last year was a qualified success. The inter-connectedness of the three plants didn't really work out. I was worried about the English climate resulting in the beans overshadowing the corn and so chickened out by planting them up bamboo canes, which turned out to be pointless after I discovered I'd actually planted a non-climbing dwarf bean by mistake. Plus the pumpkins were an utter failure that not only failed to produce any fruit, but also broke out of the bed and attempted to throttle half the garden in a bid to survive. Said bid to escape meant it did very little shading. Still, I got both corn and beans out of the bed and the nitrogen fixing presumably worked, so, yeah, qualified success.

This year is so far a different story:

I think that is the most concentrated greenery I have ever accomplished in my limited gardening career.

I'll take you through the story so far. I started with my plan of attack, scribed in that most notable of tools, MS Paint.

Copy-pasted from the much larger garden diagram found here, cause I can't be arsed to draw it again square.

First off, I ditched the pumpkins of last year for courgettes, on the basis that a) I've had success with courgettes before and b) I actually like courgettes, which is more than can be said for squash or pumpkins. I also made the decision to go all-in and grow the beans up the corn instead of on a separate bamboo wigwam.

The bed is 1.25m x 1.25m and I started working on the basis that last year's efforts showed I could get good results from sweetcorn that was planted about 40cm apart, while my sister's garden showed that courgettes required room to spread when planted in the ground rather than a pot. So, I put the courgettes in the corners and worked out the tightest arrangement of corn/bean planting possible to squeeze in as many plants in as I could. This turned out to be 7 - two lines of three flanking the courgettes with one in the middle for luck.

Growing the beans up the corn introduced the issue of timing into the mix. The traditional Iroquois method sees all three seeds planted simultaneously, but the cooler English weather would mean that the corn would grow too slowly to support the beans and the leaves on the beans would grow so thick and so fast that they'd shade out everything else. After a small false-start with switching type of corn and a failure of the initial courgettes seedlings, I ended up doing the initial planting of the bed mid-May, with the beans not going in until a month later to give the corn and courgettes a head start.

Don't mind the oca that's appeared at the back, or the dwarf bean that's appeared at the front. Gardening plans are always flexible and I'm never immune to the urge to try and squeeze an extra plant into the space that's not really available.

From there, it's just been a case of letting it grow up and training the beans to grow up their appropriate corn stalks.

For scale, the tallest sweetcorn plants at the back are well over 6ft and still going.

However, the training effort went on the back foot pretty much from the get-go - the close-planting of the corn/bean units and the location in a corner has meant that it's become more and more difficult to get access to some of the sections of the bed as the foliage thickened. In addition, my attention to the garden suffered a bit from the impending arrival of Daughter II (The Daughtering) and the climbing beans were left to fend for themselves for the past few weeks as other things more urgently required my attention.

That has resulted in... well, neither words nor a still picture can do it justice.

Whether I'll see any beans from this bed is, as I said in the video, slightly up in the air (which is more than can be said for some of the beans' growth habits). However, I have already got significant courgette success and the corn is looking promising. With luck, the bed should provide a lot more than just "a valuable learning experience". And hey, at least it's been fun.

PJW