After a very long period of neglect, we did some work on the lower terrace yesterday: we used fresh soil to filled in behind, and filled up to the top of, our new retaining wall.
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The last time I blogged about progress on the lower terrace was in July and August last year (
here and
here). This is what it looked like in July 2011:
Since then, we had made a bit more progress on the terrace walling and a lot more on the weeding, extending the area cleared of aggies etc etc until the line of sight along the front wall (just a row of steel posts in the picture above) extends all the way to the drive. (Which, from this point of view, is an ever-diminishing triangle of ground behind the camera.) And we weeded upward, clearing the stonework of grass etc. in preparation for rebuilding both terrace walls.
Doing this extra weeding we discovered that there was another, somewhat mysterious, partial terrace wall completely overgrown with weeds, about one metre to the left and behind the camera. Once the foliage was cleared we were unsure what to do. The cutting is steep, about 60–80cm high and has
nothing holding it up except aggie roots—so we decided to work on other bits until we decided whether to build a retaining wall for it (and if so, what sort) or not. We still haven't decided.
In addition, in the last six months, we mulched most of the area we weeded, creating an earth ramp down to the terrace, with stepping-stones and edged in stones; and we intermittently weeded (and then sprayed!) the area furthest from the camera trying to get rid of the last of the blackberries and any other weeds before putting any fresh soil on top. (After months of trying—and failing—to track each blackberry shoot back to its root we gave up and started using Roundup. Likewise, after trying and failing to get the last of the weeds out of the terrace walling—without dismantling the entire wall—we started using Roundup there too.)
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Fast forward past months of micro-progress: two weeks back we went to the
GrassRoots Community Market in Upwey and, apart from getting some great food, presents etc—we got three sturdy "Kings Park Special" Callistemons for only $50. (Yarra Ranges information on this cultivar
here; listed by Angus Stewart
here as one of the top ten native plants.)
Having bought, desiccated and killed a $70 grafted red flowering gum (called "Wildfire") just before xmas, what appealed to me about the plants is that they are large (1–1.5m) in large posts, acclimatised to local conditions, were not being maintained on a sprinkler system, meaning that if I neglected to water them
daily they would not turn up their toes. And since it was likely to be a while before we won the war on weeds, they needed to be able to survive a few months in pots. They were also cheap and we were skint.
Having these lovely bottlebrushes sitting on the deck—and having read up about them—we found the motivation we needed to get two cubic metres of soil delivered, and shift it onto the terrace so we can plant them. The shifting took about sixty trips, using our big rope-handled buckets, with M and I shoveling, straining, stumbling, slipping, sliding, toe-stubbing, sweating and swearing until we were stuffed. Anyway, the soil is now in place and we are ready to plant the Callistemons and mulch around them. Que photo:
If we can, we will get another three of these and plant them as a hedge at 1.5m intervals. It is a shame not to use the Scarlet and Crimson Bottlebrushes at all, or to alternate between varieties of Bottlebrush—as I originally planned—but we might be able to use these behind the Kings Park Specials once we have rebuilt the stone wall.
A large part of the reason for the delay in planting anything at all was our realisation that it would be difficult to work on the stone wall with freshly planted tube-stock at out feet, without stepping on, or dropping a rock on, said plants. M. wanted to do the wall first, I was happy to plant first and replace any damaged plants. We were at an impasse, so we did nothing!
But, since these Kings Park Specials are a decent size, they will be a lot easier to see and avoid than tubestock, and we can stake them with big tree-stakes (50x50mm hardwood stakes) which will make them even easier to see and should protect them from stumbling amateur stone-masons! Also, by planting them close together (six instead of the three plants numbered 1,2,3 below) and close to the front of the terrace, they will be further out of the way, leaving us more room to work. This was my argument anyway and—as you can see—M agreed in the end.
Once the Kings Park Bottlebrushes are established, and the wall is rebuilt, there will be space available for a second row of plants. We could plant the Scarlet and Crimson Bottlebrushes here, instead of the Red flowering gum (numbered 4 below), as per my original plan. But even if we decide to stick with the Red flowering gum—or to leave this space clear for access—there are other places I might be able put these Scarlet and Crimson Bottlebrushes** and I will still plant the Weeping Bottlebrush where it will hang over the drive and gate etc. as planned (numbered 5 below).

**The "other places" are on the other side of the drive, on top of the stone wall, but in front of the planned fence. This space is triangular because the fence must be as far back from the stone wall as the wall is high (2m back where it is 2m high, 1m back where it is 1m high etc). Since the area down to the drive is M's territory, it is up to her to allow this, but since she really doesn't care what is on the other side of the boundary fence—since she can't see it from the house—it is possible that she will agree to me planting in this grey area. (It is largely because M is indifferent to what is on the "other side of the boundary fence" that the terraces are "my" area of the garden at all.) A few pictures would make this clearer, but they will have to wait for another post!
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UPDATE: We have planted four of the Kings Park Specials, with Running Postman between them. The survey stake marks where the fifth one will go. Sometime this week we will get some more mulch to cover up the bare ground around the plants and when my back gets better I will extend the retaining wall one more timber-length and terminate it. Then we can return to the back garden to finish what we started up there.