Theo: You missed the point. I was talking about soil volume.
Brent had already pointed out the water perching level
phenomenon.

Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org


-----Original Message-----
Alan Walker wrote:

Brent: You'll be surprised to find that the difference in soil
volume between low, flat containers and cascade pots is often
pretty negligible. It's an optical illusion which makes us think
that. Check it out sometime.
Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org

From: Theo
It is a law of physic. A flat container retains moist as the
container has a flat wide bottom and some holes so the water
adhere on a large surface and sticks to grains that touch it, if
you put the same quantity soil in a cylinder and pour onto the
same quantity of water with the same surface of holes (
proportionally) the water by the gravity will have a tendency to
go down and down until the bottom so the surface that will
retain maximum of moist is the flat zone around the drainage
hole and the grains adhering to it.

a easy experience is to water a rectangular pot and wait for
the water flow out, when it ends take the pot and lift one side
at 45° for few seconds and you'll see how much water will come
out again. This is why is adviced to put pots inclined when you
have heavy water falls to let the water fall out of drain holes
by gravity

Mark Hill wrote:
Brent;
It appears from your drainage logic that my cascade pots should
contain soil that is more able to retain water at higher
elevations. This logic also suggests that I shouldn't water my
cascades as often, and that dryness tests should be performed
lower into the soil. Hmmmmmm..... now you've got me thinking....
maybe I should consider changing the soil in my cascades this
spring.
-----Original Message-----
From: Brent Walston

Mark
I wouldn't go overboard with this phenomenon. If your cascade is
doing just fine with your current system, then don't fix
something that isn't broke. Just keep it in mind for the future.
You can increase the water holding capacity by changing the soil
slightly or using a slightly larger pot.

Cascade pots typically hold more soil anyhow than low flat pots.
So, take all these factors into consideration. Also consider the
species. If you have a cascade juniper, they prefer to be on the
dry side anyhow.

Brent EvergreenGardenworks.com


************************************************** ******************************
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************************************************** ******************************
-- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ --
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Theo: You missed the point. I was talking about soil volume.
Brent had already pointed out the water perching level
phenomenon.

Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org


-----Original Message-----
Alan Walker wrote:

Brent: You'll be surprised to find that the difference in soil
volume between low, flat containers and cascade pots is often
pretty negligible. It's an optical illusion which makes us think
that. Check it out sometime.
Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org

From: Theo
It is a law of physic. A flat container retains moist as the
container has a flat wide bottom and some holes so the water
adhere on a large surface and sticks to grains that touch it, if
you put the same quantity soil in a cylinder and pour onto the
same quantity of water with the same surface of holes (
proportionally) the water by the gravity will have a tendency to
go down and down until the bottom so the surface that will
retain maximum of moist is the flat zone around the drainage
hole and the grains adhering to it.

a easy experience is to water a rectangular pot and wait for
the water flow out, when it ends take the pot and lift one side
at 45° for few seconds and you'll see how much water will come
out again. This is why is adviced to put pots inclined when you
have heavy water falls to let the water fall out of drain holes
by gravity

Mark Hill wrote:
Brent;
It appears from your drainage logic that my cascade pots should
contain soil that is more able to retain water at higher
elevations. This logic also suggests that I shouldn't water my
cascades as often, and that dryness tests should be performed
lower into the soil. Hmmmmmm..... now you've got me thinking....
maybe I should consider changing the soil in my cascades this
spring.
-----Original Message-----
From: Brent Walston

Mark
I wouldn't go overboard with this phenomenon. If your cascade is
doing just fine with your current system, then don't fix
something that isn't broke. Just keep it in mind for the future.
You can increase the water holding capacity by changing the soil
slightly or using a slightly larger pot.

Cascade pots typically hold more soil anyhow than low flat pots.
So, take all these factors into consideration. Also consider the
species. If you have a cascade juniper, they prefer to be on the
dry side anyhow.

Brent EvergreenGardenworks.com


************************************************** ******************************
++++Sponsored, in part, by Boon Manakitivipart++++
************************************************** ******************************
-- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ --
+++++ Questions? Help? e-mail +++++

Alan Walker wrote:

Theo: You missed the point. I was talking about soil volume.
Brent had already pointed out the water perching level
phenomenon.

sorry with passing by a subjet to another one gets confused


Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org


-----Original Message-----
Alan Walker wrote:

Brent: You'll be surprised to find that the difference in soil
volume between low, flat containers and cascade pots is often
pretty negligible. It's an optical illusion which makes us think
that. Check it out sometime.
Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org

From: Theo
It is a law of physic. A flat container retains moist as the
container has a flat wide bottom and some holes so the water
adhere on a large surface and sticks to grains that touch it, if
you put the same quantity soil in a cylinder and pour onto the
same quantity of water with the same surface of holes (
proportionally) the water by the gravity will have a tendency to
go down and down until the bottom so the surface that will
retain maximum of moist is the flat zone around the drainage
hole and the grains adhering to it.

a easy experience is to water a rectangular pot and wait for
the water flow out, when it ends take the pot and lift one side
at 45° for few seconds and you'll see how much water will come
out again. This is why is adviced to put pots inclined when you
have heavy water falls to let the water fall out of drain holes
by gravity

Mark Hill wrote:
Brent;
It appears from your drainage logic that my cascade pots should
contain soil that is more able to retain water at higher
elevations. This logic also suggests that I shouldn't water my
cascades as often, and that dryness tests should be performed
lower into the soil. Hmmmmmm..... now you've got me thinking....
maybe I should consider changing the soil in my cascades this
spring.
-----Original Message-----
From: Brent Walston

Mark
I wouldn't go overboard with this phenomenon. If your cascade is
doing just fine with your current system, then don't fix
something that isn't broke. Just keep it in mind for the future.
You can increase the water holding capacity by changing the soil
slightly or using a slightly larger pot.

Cascade pots typically hold more soil anyhow than low flat pots.
So, take all these factors into consideration. Also consider the
species. If you have a cascade juniper, they prefer to be on the
dry side anyhow.

Brent EvergreenGardenworks.com


************************************************** ******************************
++++Sponsored, in part, by Boon Manakitivipart++++
************************************************** ******************************

-- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ --

+++++ Questions? Help? e-mail +++++


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