trinda storey wrote:hi kyrt
thanks for pointing that out i actually just read about the herb spiral and didn't realize you were supposed to vary the size of the mounds. i just got over excited about creating one and didn't plan it out.
From what I was taught... it's all supposed to be ONE huge mound that's something like 4-5 feet in diameter, that might be 2-3 feet tall in the center.
Though it's possible I'm mistaken lol.
You can make them as big mounds, like this man did (http://thewildreed.blogspot.com/2013/06/the-herb-spiral.html):
But, as you can tell, you can't get it nearly as tall, nor make nearly as diverse microclimates at that height. So, usually people use stone or bricks or other walls to make their mound get taller, like these ones:
Or, you can just use what ever stuff you've got lying around to build up the walls, which is what I did (http://www.permies.com/t/44289/projects/Herbal-Hugel-Spiral-Randomness):
I hope those pictures help!
Nicole Alderman wrote:
But, as you can tell, you can't get it nearly as tall, nor make nearly as diverse microclimates at that height.
It might be a matter of soil type, but I KNOW I've seen [quite lush and vegetated] mounds of about that diameter at least twice that height.
Sure there will be runoff, but having any sort of wall spiraling around the mound you'll get sediment deposition and end up with a much gentler slope following the wall.
Looks like I might have to try my hand at building one of these this year as an experiment...
trinda storey wrote:so it looks like there is not any gap between mounds such as i did with mine. i wonder if i can still make mine work or am i going to have to remake it? :/
You could definitely build upon what you've got there, using the gap as a place to put structural wall material (the rocks, logs, bricks, gravel-filled harware cloth, cinderblocks, and/or whatever). You don't have to remove anything that you've already laid down. Just know that, to get those microclimates, you'll have to spiral up. Which not only means structural support, but also a lot more dirt. The bottom of your spiral, can, of course be ground level, so you don't need to change the first few feet of your spiral much at all (though, you might want to put some sort of barrier between the grass and your mound, or else that grass will have a hay day taking over your mound. Grass tries to take over mine, and that's with the rock barrier. Anything I plant at ground level loves to get overtaken by grass in no time at all.)
As for material to make it taller as you spiral up, you could use dirt/soil. Or, use a mix of sticks and other organic material to make up all but the top few inches. The organic material will shrink a lot more than the soil/dirt, but if you don't have a source for soil (or the money to buy bags of it), you might want to use some "filler" to help build it taller.
I hope that helps!
I'm hoping that--aside from the lavender disaster--my spiral continues to succeed like it did last year. I've seen a few other people who made hugelspirals, but no one really posted updates years later. So, I'll keep trying to update how my spiral does over the years. Good luck with your spiral, and keep us updated!
Oh! What kind of organic/inorganic material do you have there? Any big rocks? Those could come in handy for making your spiral and saving on material costs (I ended up building mine on and around an old stump that was there, so as not to have to do as much building!)