|The backyard rain garden right after installation, with nice fat rocks|
Once I got the small stones in the rain garden I kind of liked the idea of a dry creek bed. So I got more bags of small stones but then it looked less like a creek bed and more like the bottom of an aquarium. Laurrie helpfully advised making it wider (so the scale would be right when the plants get bigger) and to add larger rocks.
I ran down to Oregon Decorative Rock and grabbed a 50 pound bag of mixed medium stones and handpicked 25 larger stones. We had also scavenged some really large river rocks when we moved the dirt pile in back. I have over 60 gardening blogs in my RSS reader and I know someone posted in the last week about how to make these look natural, but of course I can't find it now.
It needs more rock down on this end but I'm not sure how to terminate the creek bed naturally.
In nature, as the water in a river (or under a glacier) slows down it drops the larger, heavier stones first. I tried to add more of the largest stones at the sides where they'd be in nature (the water is slower there), and to bury them a little in the center of the rain garden. It still doesn't look quite right but it looks a lot better than before. And hey, look at me using those hydrology/geography classes from college! I also used algebra to calculate the water runoff to this thing. If building a rain garden has taught me anything, it's that Mom was right: you will use this stuff later in life.
I removed the dagger-leaf rushes that were responding so poorly to the summer heat and relocated a slough sedge. I need to buy more rock and then maybe have Greg's parents over to help with rock placement. They have a gorgeous garden and they have a good eye for this kind of thing.
I also decided to move one of the Zaschnerias that got covered by the Coreopsis. I thought I had read that they spread through rhizomes but it turns out they have a tap root and none of that foliage is anchored into the ground. I don't know that this guy will survive the move.
I'm still waiting for that Festuca glauca 'Golden Toupee' to get up to size. It grows so. very. slowly. If any of you more experienced gardeners want to get opinionated on the creek bed (or anything else), I am all ears. Just don't tell me I'll use that Women in World Religions class that I dropped my junior year.