Date: 5/11/2021 22:14:09
From: party_pants
ID: 1812867
Subject: Random Gardening Question
Might as well start a thread:
Random gardening question.
Drainage holes in medium to large pots. Why are they necessary? In a hot climate, wouldn’t it be better not to have any, so that the soil in the pot stays moist for far longer and dries out much slower?
Date: 5/11/2021 22:15:41
From: Bubblecar
ID: 1812870
Subject: re: Random Gardening Question
You could always plug the holes.
Date: 5/11/2021 22:17:47
From: Bogsnorkler
ID: 1812872
Subject: re: Random Gardening Question
party_pants said:
Might as well start a thread:
Random gardening question.
Drainage holes in medium to large pots. Why are they necessary? In a hot climate, wouldn’t it be better not to have any, so that the soil in the pot stays moist for far longer and dries out much slower?
I stand mine in round garbage bin lids on 3 bricks. Keep the lid with water in it.
Date: 5/11/2021 22:21:22
From: Kingy
ID: 1812874
Subject: re: Random Gardening Question
The roots at the bottom will rot if they are wet all the time.
Date: 5/11/2021 22:23:20
From: sibeen
ID: 1812875
Subject: re: Random Gardening Question
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Yep. Even pots for indoor plants have drainage holes and a space at the bottom of the pot for water to pool.
Date: 5/11/2021 22:28:06
From: sarahs mum
ID: 1812877
Subject: re: Random Gardening Question
Kingy said:
The roots at the bottom will rot if they are wet all the time.
^:
Date: 5/11/2021 22:33:32
From: party_pants
ID: 1812878
Subject: re: Random Gardening Question
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Right. So I need a pot a bit deeper than the average root length for that plant.
Date: 5/11/2021 22:36:18
From: sarahs mum
ID: 1812879
Subject: re: Random Gardening Question
party_pants said:
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Right. So I need a pot a bit deeper than the average root length for that plant.
you can makeor buy a self watering type pot.
Date: 5/11/2021 23:25:28
From: transition
ID: 1812892
Subject: re: Random Gardening Question
party_pants said:
Might as well start a thread:
Random gardening question.
Drainage holes in medium to large pots. Why are they necessary? In a hot climate, wouldn’t it be better not to have any, so that the soil in the pot stays moist for far longer and dries out much slower?
if you using utility water, coming from basins, there would be salts and whatever, wouldn’t want gradually increase them too much
bit like a favorite spot you might urinate on the back lawn, eventually things have trouble growing there
Date: 6/11/2021 07:25:53
From: roughbarked
ID: 1812930
Subject: re: Random Gardening Question
transition said:
party_pants said:
Might as well start a thread:
Random gardening question.
Drainage holes in medium to large pots. Why are they necessary? In a hot climate, wouldn’t it be better not to have any, so that the soil in the pot stays moist for far longer and dries out much slower?
if you using utility water, coming from basins, there would be salts and whatever, wouldn’t want gradually increase them too much
bit like a favorite spot you might urinate on the back lawn, eventually things have trouble growing there
Not only drainage holes but the medium itself the soil or potting mix. These depend on which plant you are growing because many have both different frainage or water retention requirements.
Salts are going to acumulate in any pot which is one reason why drainage is necessary but also aeration of the soil is important.
Probably also a good reason why rainwater should be used for pot plants.
Date: 6/11/2021 07:27:09
From: roughbarked
ID: 1812931
Subject: re: Random Gardening Question
Anyway, what plants are you trying to grow in pots?
Date: 6/11/2021 08:02:11
From: Ogmog
ID: 1812941
Subject: re: Random Gardening Question
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Dealing with Root Rot
iow:
it’s less of a PItA to re-water
than it is to correct the situation once it occurs
Date: 6/11/2021 08:24:28
From: roughbarked
ID: 1812946
Subject: re: Random Gardening Question
Ogmog said:
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Dealing with Root Rot
iow:
it’s less of a PItA to re-water
than it is to correct the situation once it occurs
Yes. Correct the drainage and water when necessary.
Date: 6/11/2021 11:42:43
From: party_pants
ID: 1813012
Subject: re: Random Gardening Question
Next question: so why don’t plants grown hydroponically suffer root rot?
Date: 6/11/2021 11:44:17
From: Peak Warming Man
ID: 1813013
Subject: re: Random Gardening Question
party_pants said:
Next question: so why don’t plants grown hydroponically suffer root rot?
Oooh.
Date: 6/11/2021 11:50:48
From: party_pants
ID: 1813016
Subject: re: Random Gardening Question
roughbarked said:
Anyway, what plants are you trying to grow in pots?
I have an orange tree and a kumquat tree in big pots. I have a few smaller pots with random ornamental plants. Over the summer months I water all of them on a daily basis to keep them alive. A few minutes after watering a small amount of water escapes via the bottom holes.
Date: 6/11/2021 11:51:56
From: dv
ID: 1813018
Subject: re: Random Gardening Question
party_pants said:
Next question: so why don’t plants grown hydroponically suffer root rot?
In hydroponic systems, root rot is caused by over-watering the roots. It’s a tricky predicament to find yourself in considering hydroponics is entirely focused on growing plants in water and dissolved nutrients in the absence of soil.
Problems arise when the root system doesn’t receive sufficient levels of oxygen, typically when using the Deep Water Culture system or The Kratky Method. Either the water isn’t aerated enough, there’s no direct exposure of the roots to the air or a combination of the two. Once root rot takes hold, the slime creates an impenetrable barrier and oxygen cannot reach the plant. Think of it like a bullet-proof jacket except, instead of saving the plant’s life, it kills it. Without suitable oxygen absorption, the root cells die, further opening the door for opportunistic pathogenic bacteria and fungi. Once they’ve infiltrated the dying cells, the pathogens can smother the rest of the living root system, too.
https://www.oysoco.com/hydroponics/10-hydroponics/56-the-best-way-to-cure-root-rot
Date: 6/11/2021 11:51:57
From: Michael V
ID: 1813019
Subject: re: Random Gardening Question
party_pants said:
Next question: so why don’t plants grown hydroponically suffer root rot?
Guess:
In non-draining pots, water is stagnant and becomes de-oxygenated. These are ideal conditions for fungi to outcompete other soil greeblies (technical term).
Hydroponic water is not stagnant, and has oxygen.
Date: 6/11/2021 12:22:14
From: Woodie
ID: 1813025
Subject: re: Random Gardening Question
party_pants said:
Next question: so why don’t plants grown hydroponically suffer root rot?
Coz they don’t have their roots stuck in fetid greeblies.
Date: 6/11/2021 12:23:59
From: Woodie
ID: 1813027
Subject: re: Random Gardening Question
party_pants said:
roughbarked said:
Anyway, what plants are you trying to grow in pots?
I have an orange tree and a kumquat tree in big pots. I have a few smaller pots with random ornamental plants. Over the summer months I water all of them on a daily basis to keep them alive. A few minutes after watering a small amount of water escapes via the bottom holes.
Mr Panty Parts,
Would you get in and out of the bath every day and never drain out the bath water?
Date: 6/11/2021 12:26:31
From: Bogsnorkler
ID: 1813032
Subject: re: Random Gardening Question
If you do what i suggested you can keep the roots moist but not soaking. Over summer will be no problem. the plant and evap will keep the water level in the lid down. the plant will be kept well hydrated.
Date: 6/11/2021 12:30:01
From: party_pants
ID: 1813036
Subject: re: Random Gardening Question
Bogsnorkler said:
If you do what i suggested you can keep the roots moist but not soaking. Over summer will be no problem. the plant and evap will keep the water level in the lid down. the plant will be kept well hydrated.
you want me to read your posts???
Date: 6/11/2021 12:31:27
From: Bogsnorkler
ID: 1813037
Subject: re: Random Gardening Question
party_pants said:
Bogsnorkler said:
If you do what i suggested you can keep the roots moist but not soaking. Over summer will be no problem. the plant and evap will keep the water level in the lid down. the plant will be kept well hydrated.
you want me to read your posts???
No, just imagine that you are getting good advice.
Date: 6/11/2021 12:35:59
From: roughbarked
ID: 1813043
Subject: re: Random Gardening Question
party_pants said:
Next question: so why don’t plants grown hydroponically suffer root rot?
Because the water is running.
Date: 6/11/2021 12:38:07
From: roughbarked
ID: 1813046
Subject: re: Random Gardening Question
Bogsnorkler said:
party_pants said:
Bogsnorkler said:
If you do what i suggested you can keep the roots moist but not soaking. Over summer will be no problem. the plant and evap will keep the water level in the lid down. the plant will be kept well hydrated.
you want me to read your posts???
No, just imagine that you are getting good advice.
Well, tell him not to leave the water sitting in upturned lids. ;)
Date: 6/11/2021 12:40:08
From: Bogsnorkler
ID: 1813048
Subject: re: Random Gardening Question
roughbarked said:
Bogsnorkler said:
party_pants said:
you want me to read your posts???
No, just imagine that you are getting good advice.
Well, tell him not to leave the water sitting in upturned lids. ;)
won’t hurt as it isn’t really deep. and like i said over a hot summer it will rapidly go and you’ll be replacing it so it won’t go stagnant.
Date: 6/11/2021 12:43:41
From: Bogsnorkler
ID: 1813054
Subject: re: Random Gardening Question
Bogsnorkler said:
roughbarked said:
Bogsnorkler said:
No, just imagine that you are getting good advice.
Well, tell him not to leave the water sitting in upturned lids. ;)
won’t hurt as it isn’t really deep. and like i said over a hot summer it will rapidly go and you’ll be replacing it so it won’t go stagnant.
plus, what about wicking beds????
Date: 6/11/2021 12:44:09
From: roughbarked
ID: 1813055
Subject: re: Random Gardening Question
Bogsnorkler said:
roughbarked said:
Bogsnorkler said:
No, just imagine that you are getting good advice.
Well, tell him not to leave the water sitting in upturned lids. ;)
won’t hurt as it isn’t really deep. and like i said over a hot summer it will rapidly go and you’ll be replacing it so it won’t go stagnant.

Date: 6/11/2021 12:44:50
From: roughbarked
ID: 1813056
Subject: re: Random Gardening Question
Bogsnorkler said:
Bogsnorkler said:
roughbarked said:
Well, tell him not to leave the water sitting in upturned lids. ;)
won’t hurt as it isn’t really deep. and like i said over a hot summer it will rapidly go and you’ll be replacing it so it won’t go stagnant.
plus, what about wicking beds????
Tthe water is travelling upwards and outwards.
Date: 6/11/2021 12:46:34
From: Bogsnorkler
ID: 1813057
Subject: re: Random Gardening Question
roughbarked said:
Bogsnorkler said:
Bogsnorkler said:
won’t hurt as it isn’t really deep. and like i said over a hot summer it will rapidly go and you’ll be replacing it so it won’t go stagnant.
plus, what about wicking beds????
Tthe water is travelling upwards and outwards.
a wicking bed is exactly the same as a pot with no drainage. just, usually, bigger.
Date: 6/11/2021 12:56:18
From: roughbarked
ID: 1813068
Subject: re: Random Gardening Question
Bogsnorkler said:
roughbarked said:
Bogsnorkler said:
plus, what about wicking beds????
Tthe water is travelling upwards and outwards.
a wicking bed is exactly the same as a pot with no drainage. just, usually, bigger.
A good wicking bed should also have drainage for the bottom dwelling water.
Date: 6/11/2021 12:57:44
From: Bogsnorkler
ID: 1813073
Subject: re: Random Gardening Question
roughbarked said:
Bogsnorkler said:
roughbarked said:
Tthe water is travelling upwards and outwards.
a wicking bed is exactly the same as a pot with no drainage. just, usually, bigger.
A good wicking bed should also have drainage for the bottom dwelling water.
no they don’t. they may have the means to drain them but they are usually full of water. that is their very purpose.
Date: 6/11/2021 13:00:27
From: roughbarked
ID: 1813080
Subject: re: Random Gardening Question
Bogsnorkler said:
roughbarked said:
Bogsnorkler said:
a wicking bed is exactly the same as a pot with no drainage. just, usually, bigger.
A good wicking bed should also have drainage for the bottom dwelling water.
no they don’t. they may have the means to drain them but they are usually full of water. that is their very purpose.
;)
At some stage they need to be drained but if you note, they are usually only used for short season growth. So really shuldn’t develop the same problems such as orange trees in pots.
Date: 6/11/2021 14:03:01
From: Ogmog
ID: 1813086
Subject: re: Random Gardening Question
A common mistake is seeing the wilting and yellowing foliage
the care giver THINKS it needs more water
and it pretty much goes predictable downhill from that point on.
Date: 6/11/2021 14:03:04
From: Michael V
ID: 1813087
Subject: re: Random Gardening Question
I just harvested a Korean radish (daikon) that had a deep (50%), wide-open, helical crack in it for most of its length. Why would this have occurred? Did it grow too fast?
Date: 6/11/2021 19:24:45
From: monkey skipper
ID: 1813178
Subject: re: Random Gardening Question
sibeen said:
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Yep. Even pots for indoor plants have drainage holes and a space at the bottom of the pot for water to pool.
Yep
Date: 6/11/2021 19:26:03
From: monkey skipper
ID: 1813179
Subject: re: Random Gardening Question
monkey skipper said:
sibeen said:
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Yep. Even pots for indoor plants have drainage holes and a space at the bottom of the pot for water to pool.
Yep
My grand father used to put a stone above the holes in a pot to slow the drainage down ,… if that helps
Date: 6/11/2021 19:44:28
From: roughbarked
ID: 1813180
Subject: re: Random Gardening Question
monkey skipper said:
monkey skipper said:
sibeen said:
Yep. Even pots for indoor plants have drainage holes and a space at the bottom of the pot for water to pool.
Yep
My grand father used to put a stone above the holes in a pot to slow the drainage down ,… if that helps
That depends on the pot. A terracotta pot with one hole in the bottom may drain too fast for certain plant types and with certain mixes. A stone may be placed to slow it down.
Some plastic pots have a lot of drainage holes for the reason that peaty mixes are used and they need to drain faster. Adding numbers of smaller rocks can also speed up drainage.
Date: 6/11/2021 21:47:25
From: buffy
ID: 1813201
Subject: re: Random Gardening Question
monkey skipper said:
monkey skipper said:
sibeen said:
Yep. Even pots for indoor plants have drainage holes and a space at the bottom of the pot for water to pool.
Yep
My grand father used to put a stone above the holes in a pot to slow the drainage down ,… if that helps
We put crocks (broken china/pottery and stones) in the bottom of pots before we fill them in my family. It helps keep the soil in (not falling out the holes) but lets the water drain through.
Date: 7/11/2021 13:42:18
From: mollwollfumble
ID: 1813350
Subject: re: Random Gardening Question
Kingy said:
The roots at the bottom will rot if they are wet all the time.
Yes, will rot if not supplied with a constant supply of fresh air.
party_pants said:
Right. So I need a pot a bit deeper than the average root length for that plant.
Or even better, a hole in the bottom.
And don’t do what Mrs m does, stand the pot in a saucer full of water and then wonder why all the pot plants are dying.
Date: 7/11/2021 13:45:27
From: mollwollfumble
ID: 1813351
Subject: re: Random Gardening Question
New random gardening question.
Westringia fruticosa – coastal rosemary.
Does that mean it’s edible?
Date: 7/11/2021 13:53:30
From: party_pants
ID: 1813353
Subject: re: Random Gardening Question
mollwollfumble said:
New random gardening question.
Westringia fruticosa – coastal rosemary.
Does that mean it’s edible?
computer says no.
Date: 7/11/2021 15:00:25
From: Ogmog
ID: 1813364
Subject: re: Random Gardening Question
roughbarked said:
monkey skipper said:
monkey skipper said:
Yep
My grand father used to put a stone above the holes in a pot to slow the drainage down ,… if that helps
That depends on the pot. A terracotta pot with one hole in the bottom may drain too fast for certain plant types and with certain mixes. A stone may be placed to slow it down.
Some plastic pots have a lot of drainage holes for the reason that peaty mixes are used and they need to drain faster. Adding numbers of smaller rocks can also speed up drainage.
although a terracotta pot is heavy and breakable
it’s far superior for moisture and oxygen exchange
i drop a circle of screening in the bottom and a handful
of gravel (and a bit of crushed charcoal) topped with soil
Date: 7/11/2021 16:03:34
From: buffy
ID: 1813389
Subject: re: Random Gardening Question
party_pants said:
mollwollfumble said:
New random gardening question.
Westringia fruticosa – coastal rosemary.
Does that mean it’s edible?
computer says no.
I think it refers to what the leaves look like. Some plants are labelled as rosmarinifolia “like rosemary leaves”. And I see rosemary has recently been moved into the salvias…Salvia rosmarinus. Again according to the computer.
Date: 7/11/2021 19:38:57
From: mollwollfumble
ID: 1813429
Subject: re: Random Gardening Question
buffy said:
party_pants said:
mollwollfumble said:
New random gardening question.
Westringia fruticosa – coastal rosemary.
Does that mean it’s edible?
computer says no.
I think it refers to what the leaves look like. Some plants are labelled as rosmarinifolia “like rosemary leaves”. And I see rosemary has recently been moved into the salvias…Salvia rosmarinus. Again according to the computer.
Ta both. I won’t risk it then.
Date: 2/12/2021 06:48:44
From: Peak Warming Man
ID: 1820905
Subject: re: Random Gardening Question
Date: 2/12/2021 08:30:35
From: roughbarked
ID: 1820913
Subject: re: Random Gardening Question
Michael V said:
I just harvested a Korean radish (daikon) that had a deep (50%), wide-open, helical crack in it for most of its length. Why would this have occurred? Did it grow too fast?
Yes.
Date: 2/12/2021 08:52:04
From: Michael V
ID: 1820915
Subject: re: Random Gardening Question
roughbarked said:
Michael V said:
I just harvested a Korean radish (daikon) that had a deep (50%), wide-open, helical crack in it for most of its length. Why would this have occurred? Did it grow too fast?
Yes.
Ta.
The other two I planted have bolted. I don’t know whether they have tap-roots yet, but I’ll pull them soon. I’ll try growing them in a pot again in autumn. I might try some in the ground, too.
Date: 2/12/2021 09:19:52
From: roughbarked
ID: 1820924
Subject: re: Random Gardening Question
Michael V said:
roughbarked said:
Michael V said:
I just harvested a Korean radish (daikon) that had a deep (50%), wide-open, helical crack in it for most of its length. Why would this have occurred? Did it grow too fast?
Yes.
Ta.
The other two I planted have bolted. I don’t know whether they have tap-roots yet, but I’ll pull them soon. I’ll try growing them in a pot again in autumn. I might try some in the ground, too.
:)
Patience will win.