The Patch update

It's been a little over six months since Susan and I started work on the Patch - our Landshare garden at Jill's and Mike's place. Here's a pictorial update on how things are going.

June 2011

December 2011

All in all, we're pretty pleased with the transformation from former horse paddock to productive vegie garden. The main problem was that I was away in Europe for the critical period mid-September to end October. Won't do that again.

Potato bed

Potato bed

The potato bed has produced a good crop of Pontiacs and the Dutch Creams are still going strong. This bed hasn't been watered since September and yet it's full of lovely, moist, worm-filled humus made from seagrass, mushroom compost, pea straw and home-made compost.
A second batch of Pontiacs has just been planted out and covered with compost made on site. The pea straw bales are breaking down quite fast (with the help of some hungry mice) - by the end of the summer I think some will just be shapeless mounds of straw.

Grain bed (not!)

Amaranth

The next bed was intended as a grain and pulse bed: amaranth, chia, quinoa, chickpea and linseed were sown in November. This was an experiment as I thought conditions might already be too warm, at least for the quinoa and chia. Looks like I was right: only the amaranth came up in worthwhile numbers, with a few chickpeas. An additional problem was watering: with only one or two visits a week and only hand watering, it was impossible to keep the seed bed moist. Lesson learned: any sowing of fine seed needs to coincide with decent rain. We got a nice crop of self-sown mallow, though!
I'm trying again with sunflowers, having enriched the soil with our home-made compost. Unenriched parts of the bed will be used for buckwheat and another green manure crop.

Watermelon and solanum bed

Eggplants, capsicums and watermelons

I divided this bed in half for ease of access - all watering at the Patch is by hand with a watering can. After a green manure crop, this bed was further enriched by the addition of 1.5 m3 of mushroom compost: I'm aiming for a rich, moisture-retentive soil. I think I walked 20 km with that wheelbarrow, as it's a couple of hundred metres from the driveway to the Patch.
Two rows of eggplants will hopefully provide shade for watermelon foliage and roots in hot weather.
I've never grown watermelons before but thought I would give them a try in this sunny position. I'm fairly sure we won't be short of eggplants come autumn - 16 plants may have been slight overkill. Not sure what else I'm going to put in here, possibly some autumn brassicas or leeks.

Three Sisters bed

Three Sisters: maize, beans, pumpkin

The Three Sisters system of symbiotic cultivation comes from South America: maize, climbing beans and cucurbits (in this case, Anna Schwartz pumpkin) are grown together. The beans enrich the soil with nitrogen and bind together the maize stalks, preventing wind damage; the large cucurbit leaves shade the soil, helping to keep it moist for the maize; the maize provides a frame for the beans to climb up. I've been sowing the maize in 1-metre blocks every 2-3 weeks and 4-5 beans a metre on the south side of the blocks.

Then there's a row of capsicums which were left over seedlings from our other garden. I guess they'll have to be the fourth sister.

Lucerne and wildflower strip

Lucerne and wildflower strip - decorative and useful

This 20 x 1 metre strip of lucerne interspersed with Queen Anne's Lace and California poppies has turned out really well. So much so that I've decided to make it 2 metres wide in the autumn. The flowers attract beneficial insects and the lucerne will provide mulch for the vegie beds. Looks great, too.
This bed hasn't been watered since early September.

Comfrey strip

Comfrey (Bocking 14)

20 comfrey plants were planted in a 20-metre strip back in July. All are doing well. I try to give them some supplementary water in hot weather, but they largely fend for themselves. I chose the non-weedy Bocking 14 variety from Diggers Club.

People have been puzzled why I'm producing semi-industrial quantities of comfrey. It mines the subsoil for minerals, then makes these available as its leaves break down. It's great as a compost activator, as a soil-enriching mulch and as comfrey tea (now brewing) - a nutritious but extremely smelly liquid fertiliser. The flowers will be good for bees (when we get some, but that's another story), and I see ladybirds and assassin bugs hanging out around them too.

Compost bays

Next batch of green stuff ready for composting

The four-bay compost system (such opulence! such luxury!) was built from old timber from Jill's and Mike's woodshed. It's working really well, but had to be lined with heavy-duty weedmat and old carpet, as the thuggish kikuyu grass from the neighbouring school oval was determined to get in on the act.

Lovely compost - once was weeds, cardboard and chook poo

We've just produced and used our first batch of lovely crumbly compost using the cold-composting method. Now the blanket weed I dug up in July is being hot-composted. Despite dire mutterings from locals about the stuff being indestructible, this is going a treat. If it once lived, you can compost it.

That's about it for now. I'm hoping a Permaculture Design Certificate in February will give me some more inspiration. Also we're doing a bee-keeping course in April as we think our Patch is a bit of a bee-desert, being surrounded mostly by acres of well-mown grass. If we want pollination, we'll have to provide the pollinators and plenty of bee tucker.

Happy New Year and happy gardening in 2012!

Feed the soil with green manure crops

At yesterday's Harvest Basket I was talking with Linda and Dave about soil. They have been in their house about a year and are getting a veggie garden established in their front yard. Up until now it has been lawn and the soil sounds as if it is poor and sandy.

I suggested growing a green manure crop to remedy this, but didn't have time to elaborate.

Although a lot of experienced gardeners use green manure regularly, it sounds like there are plenty out there who don't know about this great, low-cost and low-effort way of building a rich, living soil in their veggie patch.

The basic idea is as follows: in a bed that you don't need for a few months (at least 10 weeks), you sow seed very thickly to produce a lush, green blanket of young plants. These will out-compete any weeds that might germinate in your soil.

It's a good idea to net the bed until the seedlings are up, otherwise the pigeons and sparrows will have most of your seeds. You'll end up with fat, healthy pigeons but little else to show. (I've often considered harvesting the pigeons, but Susan isn't keen.)

When the young crop is about 20 cm high you slash it down and dig it into the soil, where it rapidly breaks down, providing food for microbes, earthworms – and of course the veggie seedlings you're going to plant into the bed.

It's important to dig in the green manure crop before it starts to get tough and woody, otherwise it will take a lot longer to break down.

Green manure is a way of keeping the soil 'working' until you need the bed. Watering needs are lower than with a food crop; if you sow the green manure in the colder months you shouldn't need to water it at all once the seed has germinated, unless there's a very dry spell.

Typically a green manure mix will contain legumes such as beans, peas, lupins, with grasses like barley and rye. These nitrogen-fixing plants are ideal for a bed where you intend to grow hungry plants like cucurbits (pumpkins, zucchini etc) or brassicas. Van Loons sell a good mix in 500g bags, or you can use your own left-over seeds from last year.

You can also choose your green manure for specific purposes. For about 3 years now I've been using mustard as a bio-fumigant green manure. It is supposed to clean the soil of fusarium (causing wilt in tomatoes etc) and repel harmful nematodes. It seems to work: I've had great, healthy tomato plants ever since and haven't lost one to wilt, whereas I used to lose a couple of plants each year prior to this. (Typically they would grow well until first fruit set, then the leaves would curl and turn purple and the plant would die.)

Diggers do a bio-fumigant mustard mix, and Green Harvest do a whole range of different green manures for specific requirements.

Quick update on the wicking bed (see July post)

I've been adding salad and herb seedlings to the bed these last couple of weeks and they're all looking fairly perky. We've had 36mm of rain this week but the bed appears to be draining well. I suspect that the sandy soil mix has been important in this regard, even though it went against all my instincts - I'd normally have a rich mix of compost, lucern straw etc in a raised bed. It will be interesting to see how things go once we get into the dry, hot summer months.