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May 29, 2014

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Climate change, Companion planting, Death, Fruits for shade, Gardening, Greens, Ornamental gardens, Plants and what I know about them, Rats, Vegetables, Weeds

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Night of the Living Mulch: cover crops for the zombie apocalypse

When the very existence of humanity is threatened, perhaps by catastrophic global warming, perhaps by an attack of brain-eating monsters, what is the first thing you think of? Yes, we’re on the same page: ensuring an adequate layer of mulch under your fruit trees. Ideally something that not only retains moisture and maintains soil structure but offers a little something for the humans struggling with a post-industrial lifestyle nearby. So, to address the needs of fellow survivalists in these difficult times, I offer a run down on chlorophyll-laden companions for such moments of adversity.

Strawberries.

Chance of surviving: Good, given consistent moisture and morning sunlight. After a couple of years in the ground, susceptible to a virus that makes the fruits look like hairy-faced Cousin It out of the Adams Family – greenish protrusions all over the fruit. Still tastes okay, though: it doesn’t pay to be fussy after the zombie apocalypse.

Productivity: Theoretically, excellent. A delicate reminder of the luxuries of gentler times. In reality, in my garden, nada: easy pickings for critters. Maybe netting would help.

Capacity to out-compete weeds: Could do better. Needs extensive straw mulch or weed matting. This is your pampered city no-nothing who is the first to bite it when weapons are drawn.

Pepino.

Chance of surviving: Excellent. Said to be short-lived but can reproduce by layering, so new plants take root wherever branches lay on the ground. Tolerates partial shade well and copes well with periods of drought.

Productivity: Again, theoretically, impressive. Produces peach-sized juicy, mildly sweet fruits tasting like a slightly insipid melon – good in a mixed fruit salad. Flavour will be surely enhanced by the scarcities after the breakdown of civilisation. Fruits early, within the first year or so. Unfortunately, fruit tends to droop towards the ground where fruitarian zombies and/or rodents can easily nab them.

Aesthetic appeal: (the art galleries may be filled with mindless corpses, but the beautiful things in life are still important) High. Gorgeous little white and purple striped flower with a contrasting yellow stigma. The light apricot-coloured fruit is dappled with purple and the long leaves are an attractive greyish green.

Capacity to out-compete weeds. Not bad. Plenty of leaves right down to the ground, even in shade. Can’t entirely crowd out ehrharta or trad, though, and it’s a pain to weed around and through it. Not for neat freaks. But neat freaks probably won’t cope with the survivalist lifestyle too well, so not to worry.

Comfrey.

Chance of surviving. Comfrey will be the last plant standing. Deep tap roots enable it to access any water available. Needs some sunlight but copes with very little in my garden.

Productivity. This is the permaculture mother lode: high nitrogen, high potassium, a dynamic accumulator of minerals. No doubt there are herbal types who will profess it cures cancer. You can’t eat it and your chooks probably shouldn’t eat too much of it either unless you want them to have liver failure, but it’s a fantastic compost activator and decomposes into a comfrey tea that’s an all purpose liquid fertiliser.

Aesthetic appeal: Enormous textured grey-green leaves and lovely delicate purple flowers. Smells pleasantly of cucumbers when cut.

Capacity to out-compete weeds. Comfrey is a weed. Well, the non-sterile versions are: you are best getting your hands on the Bocking 14 sort which don’t produce seeds. Spend some time in the underground bunker planning ahead before you plant this, since, a bit like Jerusalem artichokes, once it’s in it stays there. Any tiny piece of root (or stem) in the ground will produce another plant. You can tear off its leaves three or four times in a year and it will come right back. In fact, comfrey may well be the plant version of the undead. The large leaves and capacity to grow when all around are wilting means it keeps most competitors down though trad seems to be able to find a way. Dies down briefly in winter which gives the other nasties a go. Since Sydney will no longer have a winter in the near future this may become less of a problem.

Sweet potato.

Chance of surviving: Very good. In theory dies back in winter (but see above). Regrows from tubers left in the ground in previous seasons. Copes well with drier periods, though it does need quite a bit of sun.

Productivity. In my garden hasn’t produced an astonishing number of tubers, but I haven’t taken it very seriously as a root crop. That will obviously change when civilisation breaks down and there’s no longer a chip shop around the corner. The new leaves and shoots are an excellent alternative to spinach or swiss chard, juicy and quite mild flavoured. They are much nicer to eat raw than rainbow chard, for instance, and apparently are a favourite food in the Phillipines. The leafy tips grow back quickly after being harvested.

Aesthetic appeal. Gorgeous. Some varieties have heart shaped leaves, others palmate. The leaves are a deep glossy green with purplish new growth. Related to the (weedy) morning glory vine, so you may get some very pretty flowers towards the end of summer. Apparently there are ornamental varieties with near-black or lime green leaves, but the culinary varieties are nothing to sneeze at. Note: there will be zero tolerance of ornamental plants after the zombie apocalypse.

Capacity to out-compete weeds. Not bad at all. The leaves are large and there are lots of them. The vine is quite vigorous and, like pepino, sends out roots where it touches the ground. With a little light supplementary weeding, my sweet potato seems to have kept things under control around the artichokes and the citrus pretty well.

* * *

No advice here on weaponry or tips on an antidote for those snacked on by the undead, but we have covered the important issues. Next week: hydroponics after the collapse of the West Antarctic Icesheet.

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mccnmatt

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May 25, 2014

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Animal pests, Backyard chickens, chicken diet, Gardening, Greens, Plants and what I know about them, Possums, Rats, Vegetables

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Critters with kidneystones

It was all going so well. The warrigal greens were flourishing, even without being regularly urinated on. Deep-rooted sorrel was a stalwart when pretty much nothing else was happening in the garden at all. Both were in high rotation in the kitchen. I’ve always been a bit cautious about using them raw, since, along with other garden staples like rainbow chard and rhubarb, both of them have a fair bit of oxalic acid, which if you overindulge and/or are unlucky can cause kidney stones (although the idea that the latest “miracle foods” might have the potential to be dangerous causes outrage in some) . Given that rainbow chard, which is also quite high in oxalates, always has escaped animal attention, it seemed too much of a coincidence that the beasties seemed to leave these plants alone: those smarty pants critters were sensibly avoiding intestinal distress .

But look at my poor greens now:

Something is clearly tucking in.

There are a number of possible suspects. Judging from the robotic squeaks and buzzes in the undergrowth, there are satin bowerbirds still around. Rumour has it they are fond of fresh shoots – I blame them for the tatty foliage of my now past-it Purple King beans. It could be the chickens of course, but though the four new girls spend a lot of time in the area where the warrigal greens are (or were… *sniff*) only tricksy skinny Shyla regularly scoots through the gap in the bamboo gate into the veggie patch where I’ve planted the sorrel and, more recently, rhubarb (the leaves of which *are* toxic to humans, and have also been chewed in the last few days). So, in the absence of an extensive literature review on comparative rodent, marsupial and human tolerances of oxalic acid (I have tried!), I’m blaming rats or possums. I guess definitive evidence would consist of creatures with particular glossy pelts. Or creatures rolling around with excruciating abdominal pain. Or both.

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mccnmatt

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March 29, 2014

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Brush turkeys, Climate change, Exclusion pest control, Gardening, Plants and what I know about them, Seasons

Cherry blossom in autumn

What’s the difference between a good gardener and a bad gardener?

Two weeks.

That’s me, at least two weeks late with everything. Most of the autumn planting happened today, in delicious sunshine after three days of deep, seeping rain. Peter Cundall says my newly sown carrots (should they germinate, always rather unlikely – I got one solitary seedling out of the batch sown a month or so ago) will be pale and thin. Gothic carrots. Hopefully the spindly survivors will be the purple ones: seems more appropriate somehow.

I’m not very optimistic about my garlic either. In previous years I reaped, almost to the clove, an identical amount of garlic to the quantity I planted six months before (I have a similar success rate with potatoes). However, I live in hope that all that will change in 2014: “The Year of Lime”. I have been very slapdash with soil preparation in the past, hoping that cow manure and lucerne-and-straw mulch, with the odd splash of comfrey tea will do for pretty much everything. This year I’ve taken the same approach to dolomite on my leeks and garlic, that the Scottish other half takes to salt on his dinner: more is more. Hopefully it will make a difference. I’ve also put in not just the usual Italian White but also a day-length neutral type, Glen. Perhaps its not me that is harshing my garlic, but my latitude. Now I have a controlled experiment to settle it.

Having discovered the implausible passion of brush turkeys for the allium family, I’ve gone for a belt and braces approach to protecting seeds and seedlings. This year I’ve draped my usual little hoops of wire fencing with vege nets, partly to keep out the beasties and partly to shade the newbies in what’s been an unusually warm March. My home grown brassica and fennel seedlings are working with that same goth aesthetic and I fear that one sunny day might be the end of them. The nets have done sterling service with the beans, which are up and cropping well.

So since we’re in the dying days of March, it may be that my celery and rainbow chard, broccoli, kale and fennel are destined to spend the next six months in suspended animation waiting for the sun to hoist itself above the trees and get things going again on our chilly south-west facing slope. But then, I noticed only a few days back that the little pot-grown cherry tree that has, for the last five years stubbornly refused to flower or fruit, has spluttered into bloom at this most inpropitious time, and that the strawberries beneath the custard apple have sprung little white petals and even greenish fruits. I’m not sure what all this portends: the unnatural beginnings of climate change or just the confused reaction of temperate plants to subtropical seasons. Either way I’m hoping for a harvest.

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mccnmatt

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February 25, 2014

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Animal pests, Backyard chickens, Brassicas, Brush turkeys, Companion planting, Exclusion pest control, Gardening, Greens, Insect pests, Iron deficiency, Native animals, Natives for shade, Possums, Rats, Vegetables

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It’s not easy eating greens

Maybe it’s a careless-vegetarian-with-low-level-iron-deficiency thing, but I’m often hankering after greens. Thankfully, the green leafies seem to be one of the few foodgroups to which brushtailed possums, rats, bandicoots, brush turkeys and chickens – the non-human beneficiaries of my most of my horticultural efforts – all seem relatively indifferent. When things were very barren in the yard recently, my sorrel plant, a marvellous perennial that, with the deep taproots of a potential weed, soldiers on with minimal attention, was munched by something with a sophisticated palate for citrus flavours and a high tolerance of oxalic acid. Occasionally some beastie has a light snack on my other trusty standby, the rainbow chard, but on the whole my favourite greens seem immune to animal predation.

Having failed to grow them from seed, the Warrigal greens I bought from Daleys have been a cracker. They’ve threaded their way through a garden bed that, with only a couple of hours sun a day, has pushed the envelope for even shade tolerant plants like Davidson’s plum, macadamia and callicoma serratifolia. Andy Ninja regularly scratches her way through that neck of the woods, grubbing for remnants of trad, but she hasn’t managed to loosen the Warrigal greens from their moorings, and we’ve had it in everything from lasagne to dal to quiche without any visible dent appearing in the supply. Rumour has it that they self-seed prodigiously, so there’s promise of more next year.

During a couple of La Nina years we had watercress soup on the menu for about 18 months on the trot thanks to a semi-shaded spot near the chook run: boggy in torrential downpours but otherwise ordinary garden soil. A soft spot for umbrelliferous flowers and the aphid eating critters they attract, and a lazy habit of chucking decrepit parsley plants under my fruit trees as mulch has meant that Italian parsley pretty much dominates the seed bed in the herb garden and food forest around the back door. Whenever the moisture level and the temperature is right, a new generation surges forward underneath the potted makrit lime and the Cavendish banana and even between the paving stones.

I had rocket doing the same in the veggie patch a couple of years ago, until I put the kibosh on it by over-zealously collecting the contents of the papery pods. I must have been indulging in some herbal fantasy of seed saving, and so I have feral rocket no more. At least for the moment. Because of the tedious necessity to earn a living, I’m never on top of the weeding, and as the years pass I’ve started to recognise the seedlings of my favourite plants wherever they appear so I can “edit” the garden rather than, in that hateful bit of business-ese, attempting to “grow it”.

However, a particular favourite has proven to a more difficult proposition. I love bok choi and all its cousins, but especially the look and taste of red bok choi, an F1 hybrid that’s really a luscious purple, a perfect match for the “house” beans, Purple King; the salad enriching Giant Mustard and the beautiful but apparently impossible to grow purple brussel sprouts.

I have spent far too much time, money and mental energy over the last three years trying to produce an anemia-busting harvest of bok choi. In year 1, following the gospel of Jackie French, I tried to shelter my precious cruciferous greens in a guild of fellow travellers, with limited success. In year two, I went for a guerilla strategy – my choi germinated under the cover of the great hairy leaves of my zucchini. I was optimistic but the cabbage whites were not so easy to fool. But I have made a break-through, thanks to a “chuck all the seeds in the bottom of the packets together and hope for the best” approach. Coriander! So impossible to grow in Sydney, always starting so well and then going to seed before you’ve even got a garnish out of it. But apparently, you can keep the barn door closed (to moths? where is this metaphor going?) even if your coriander has bolted. The bok choi that grew in amongst my incorrigible coriander was completely untouched. So under the shelter of brush turkey-thwarting hoops of wire and the modest veil of a rather tattered veggie net, in goes bok choi and sacrificial coriander along with the aragula and the mizuna, the watercress and the daikon. If I can crack this one, the purple brussel sprouts are next!