I do hope someone here can advise me, because I have tried 3 other forums and no one has replied. I have researched alot but can't seem to find a proper solution. Here is my problem:
My soil is heavy clay. In Summer it is dry and clumpy and when it rains, puddles form wherever they can. My existing ground level flower beds are a swamp at the front. I have two possible soultions, and first off should mention that luckily I can get my hands on as much free top soil as I need, which has for 50 years had fruit and vege grown in it so it's packed with the good stuff.
1- Build a raised bed. My idea was to totally dig out my existing beds to around 14-18 inches, which is about as far as I can get before hitting a solid , impenetrable wall of clay and rubble. Lay down weed suppressing cloth. Add 2 inches of gravel (needed for drainage ?) , fill up with top soil. This then brings it to ground level. Then Raise the bed with a further 6-8 inches of soil, which means I'd have around 2 foot of totally new soil and a raised bed which would slightly slope from the back (where it rests againsts wooden fencing) towards the front
2. Build a sunken bed. Totally dig out to around 14-18 inches as before and again use the weed cloth, then gravel, the top soil/compost. This would keep the bed at ground level and there would be no "slope" and not as much new soil in there as in method 1
I just want to know if I am missing anything here and if my ideas will stop the issue of puddling in wet weather. I've never done anything like this before, but logic alone tells me that if I am basically replacing the current soil with 2 foot of new soil that surely the drainage will be heaps improved?
But what happens when there's alot of rain and the moisture collects at the bottom of the raised bed, where the new soil and old soil meet ? Will there be a problem or not ? I would have thought the 2 foot of new soil would soak up most of it without getting TOO waterlogged? And as the raised bit of around 6 inches will be edged with log roll or stone, there will be small gaps in the edging for excess water to creep out, which will just go into the grass?
I was also considering that in front of the log roll/stone edging I'd create a 2 inch wide and 2 inch deep "trench" - more for making my life easier when I mow the lawn near the edging really, but this could act as a place for water to go too ? I'd be filling the "trench" with decorative chippings or bark so wouldn't "see" any water if it got in there
What do you think...can you suggest anything I'm overlooking?
I know some people say to dig in compost etc to clay soil to improve it but I can't do that every year without taking my plants out TO be able to do it, which isn't really practical ! That route is ok for veggie growers but I'm not growing vege and nor do i want to have to dig over 2 long beds every year
I hope you can help, thank you in advance!
victoria
My soil is heavy clay. In Summer it is dry and clumpy and when it rains, puddles form wherever they can. My existing ground level flower beds are a swamp at the front. I have two possible soultions, and first off should mention that luckily I can get my hands on as much free top soil as I need, which has for 50 years had fruit and vege grown in it so it's packed with the good stuff.
1- Build a raised bed. My idea was to totally dig out my existing beds to around 14-18 inches, which is about as far as I can get before hitting a solid , impenetrable wall of clay and rubble. Lay down weed suppressing cloth. Add 2 inches of gravel (needed for drainage ?) , fill up with top soil. This then brings it to ground level. Then Raise the bed with a further 6-8 inches of soil, which means I'd have around 2 foot of totally new soil and a raised bed which would slightly slope from the back (where it rests againsts wooden fencing) towards the front
2. Build a sunken bed. Totally dig out to around 14-18 inches as before and again use the weed cloth, then gravel, the top soil/compost. This would keep the bed at ground level and there would be no "slope" and not as much new soil in there as in method 1
I just want to know if I am missing anything here and if my ideas will stop the issue of puddling in wet weather. I've never done anything like this before, but logic alone tells me that if I am basically replacing the current soil with 2 foot of new soil that surely the drainage will be heaps improved?
But what happens when there's alot of rain and the moisture collects at the bottom of the raised bed, where the new soil and old soil meet ? Will there be a problem or not ? I would have thought the 2 foot of new soil would soak up most of it without getting TOO waterlogged? And as the raised bit of around 6 inches will be edged with log roll or stone, there will be small gaps in the edging for excess water to creep out, which will just go into the grass?
I was also considering that in front of the log roll/stone edging I'd create a 2 inch wide and 2 inch deep "trench" - more for making my life easier when I mow the lawn near the edging really, but this could act as a place for water to go too ? I'd be filling the "trench" with decorative chippings or bark so wouldn't "see" any water if it got in there
What do you think...can you suggest anything I'm overlooking?
I know some people say to dig in compost etc to clay soil to improve it but I can't do that every year without taking my plants out TO be able to do it, which isn't really practical ! That route is ok for veggie growers but I'm not growing vege and nor do i want to have to dig over 2 long beds every year
I hope you can help, thank you in advance!
victoria