You need to drill some holes in concrete slabs with a drill machine in the concrete slab for drainage.
Do i need a floor for garden beds.
It s not mandatory to create a raised garden bed floor but experienced gardeners recommend it for several reasons.
If it s a gardener s supply bed you ll find the soil quantity listed with the product details.
For typical garden beds of 12 inches high or shorter 2 inch thick lumber makes sturdy sides although you can cut plywood pieces to any size if you prefer to use it for the sides.
Raised beds take very little space and can be built right over a concrete patio if lined properly.
To figure out how much soil you need use the soil calculator.
Drainage in a raised bed is superior to that in an in ground garden bed.
Raised beds for wheelchairs or sitting gardeners should be 24 or higher.
Raised beds have been popular in the south for a long time where heavy clay makes gardening difficult.
It won t drain properly.
A 12 deep bed provides ample room for most vegetable roots.
Prevent weeds from growing up from the ground below.
The size is up to you.
Dovetail cedar raised garden kit lets you create a gorgeous two tier flower or vegetable garden with ease.
Higher beds mean less digging in the soil underneath and less stooping.
The bed frame can be as simple as 2 x 4s on top of the ground or even patio retaining wall blocks.
Why you should line the bottom of your garden beds.
Here are a few things you should remember before putting a concrete slab on the bottom of your raised garden bed.
Use shade cloth to protect crops that can t tolerate hot afternoon sun.
But clay does contain beneficial minerals so if you mix it into your garden bed do a soil test first to see if you need to add amendments.
Simply slide the boards into place and you re done.
As a general rule herbs and salad greens need 6 12 of soil while vegetables require 12 18.
Fill your bed with potting soil that s formulated for raised beds and planters such as our potting mix.
Don t use ordinary garden soil.
A bed that s at least 6 inches high provides ease of access and gives roots plenty of room to grow.
These instructions describe building a 4 foot by 6 foot by 10 1 2 inch bed with 2 x 4 untreated lumber.
Here s a look at what materials you can use as a raised garden bed floor to help your plants thrive.
Dovetail cedar raised greenes 4 ft.
The dovetail joint construction means you won t need tools to assemble the garden frame.