Ask a Question forum: Raised beds

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Name: Karen Adair
Washington (Zone 8a)
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KarenDA
Feb 10, 2018 10:37 AM CST
We are planning a raised bed garden this year. Can anyone tell me the minimum depth we should work towards? The first we are building will be for vegetables. Thanks!
Have a great day all!
Name: Anne
Summerville, SC (Zone 8a)
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Xeramtheum
Feb 10, 2018 2:23 PM CST
Hi Karen,

It largely depends on what you are growing .. some veggies like lettuce or corn with short root systems will do fine at about a foot to a foot and a half .. others veggies like carrots or squash need about 2+ feet in depth and tomatoes and vines like squash or watermelons with deeper root systems do best even deeper like 2.5 feet to 3+ feet.
"The Universe speaks in many languages, but only one voice. It speaks in the language of hope; It speaks in the language of trust; It speaks in the language of strength, and the language of compassion. It is the language of the heart and the language of the soul. But always, it is the same voice. It is the voice of our ancestors, speaking through us, And the voice of our inheritors, waiting to be born. It is the small, still voice that says: We are one. No matter the blood; No matter the skin; No matter the world; No matter the star; We are one. No matter the pain; No matter the darkness; No matter the loss; No matter the fear; We are one. Here, gathered together in common cause. we agree to recognize this singular truth, and this singular rule: That we must be kind to one another, because each voice enriches us and ennobles us, and each voice lost diminishes us. We are the voice of the Universe, the soul of creation, the fire that will light the way to a better future. We are one."

G'Kar
[Last edited by Xeramtheum - Feb 10, 2018 2:27 PM (+)]
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Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
Plant and/or Seed Trader Birds Cat Lover Greenhouse Tropicals Bulbs
Seed Starter Garden Ideas: Master Level Hibiscus Hybridizer Garden Sages Butterflies
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Xeramtheum
Feb 10, 2018 2:26 PM CST
Double posted .. sorry!

"The Universe speaks in many languages, but only one voice. It speaks in the language of hope; It speaks in the language of trust; It speaks in the language of strength, and the language of compassion. It is the language of the heart and the language of the soul. But always, it is the same voice. It is the voice of our ancestors, speaking through us, And the voice of our inheritors, waiting to be born. It is the small, still voice that says: We are one. No matter the blood; No matter the skin; No matter the world; No matter the star; We are one. No matter the pain; No matter the darkness; No matter the loss; No matter the fear; We are one. Here, gathered together in common cause. we agree to recognize this singular truth, and this singular rule: That we must be kind to one another, because each voice enriches us and ennobles us, and each voice lost diminishes us. We are the voice of the Universe, the soul of creation, the fire that will light the way to a better future. We are one."

G'Kar
[Last edited by Xeramtheum - Feb 10, 2018 2:26 PM (+)]
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Northern NJ (Zone 6b)
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LorettaNJ
Feb 10, 2018 2:51 PM CST
What kind of raised bed are you talking about? Is the bed open on the bottom to the ground? We have a raised bed community garden and you would be surprised how big plants can get in a box less than 12 deep. Some of the boxes have fabric and some don't. We did it because the DOT dumped concrete and other materials when the roads were made and the ground was impossible to dig. Squash and tomatoes do well for us. We don't allow watermelon because they are too big but people have grown them.
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
Feb 10, 2018 3:07 PM CST
My beds have cardboard and landscape fabric at the bottom to prevent weeds and critters coming up. The beds are around 11 inches deep and everything grows just fine.

If you can utilize the existing soil, you can build a raised bed only 6-8 inches deep, double-dig the existing soil to loosen it, fill the raised bed with amended soil and grow just about everything.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Name: Karen Adair
Washington (Zone 8a)
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KarenDA
Feb 10, 2018 3:35 PM CST
Thank you so much. I a m considering squash and pumpkins among others but no root vegetables, well radishes I guess. I appreciate the answers.
Have a great day all!
Name: Jim Goodman
Northeast Louisiana
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Jim41
Feb 16, 2018 5:37 PM CST
I do only raised bed gardening. My soil is no good for traditional. I have one bed 75x4, two are 40x4, two are 18x4, one is 24x4 and two are 4x9. I use cross ties for the sides and ends. That makes my beds about 9 inches in depth. I have found that to be sufficient.

I have planed lettuce, radishes, carrots, broccoli, cabbage, mustard greens, green beans, tomatoes, squash, kohlrabi, spinach, cucumbers, green beans, butter beans and tomatoes. All have thrived.

The key to raised beds is to make your plants grow up, not ramble. I cage everything. I cage squash and you will be surprised at how they move up the cage. I use concrete reinforcement wire to make the cages and make the cages to fit the plant. Squash need a larger cage than tomato, tomatoes need larger cage than cucumber.

Wishing you much success with your raised beds.

Jim
Jim41
Name: Karen Adair
Washington (Zone 8a)
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KarenDA
Feb 16, 2018 6:17 PM CST
Thanks so much Jim!
Have a great day all!

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