Got this bald cypress 3 weeks ago on the clearance pile. Keeping it submerged which I learned from this forum. How often do you guys change the water out?
I never truly change the water. Once a week depending on how the water looks (if you use any organic fertilizer you will see a lot of algae build up). If it has a lot of algae I do it more often. I use my Joshua Roth wand and spray hard to loosen the algae and it flows out of the pot with the overfill. Remember that BC thrive in swamps where the water is stagnant. I still water them twice a day, they are a high water mobility (as Ryan calls them), so between the tree using water and evaporation the water level goes down between watering's. IMO, by doing this, you are adding oxygen every time you water.Got this bald cypress 3 weeks ago on the clearance pile. Keeping it submerged which I learned from this forum. How often do you guys change the water out?
I use this every time I see some wiggly stuff growing on the pots.When I see mosquitoes
FWIW, swamps are not really stagnant. They can have stagnant periods, but water levels aren't really constant. Water flows through swamps albeit sometimes very slowly, but it moves. BC show optimal growth in areas that are temporarily (seasonally) flooded. There are numerous, extensive studies showing that. Warm Stagnant water (as in a summertime container) holds less O2 than water that is occasionally changed/drained...I never truly change the water. Once a week depending on how the water looks (if you use any organic fertilizer you will see a lot of algae build up). If it has a lot of algae I do it more often. I use my Joshua Roth wand and spray hard to loosen the algae and it flows out of the pot with the overfill. Remember that BC thrive in swamps where the water is stagnant. I still water them twice a day, they are a high water mobility (as Ryan calls them), so between the tree using water and evaporation the water level goes down between watering's. IMO, by doing this, you are adding oxygen every time you water.
I use this every time I see some wiggly stuff growing on the pots.
I have never had a BC, but have worked with tons of different willow varieties and the thing I keep relearning is that although willows can survive for long periods of time with their roots completely submerged, they actually have optimal root growth (just like every other tree species) in a well draining medium such as, you guessed it, bonsai soil. Pans of water are a nice crutch when you don't have time to water said medium six times a day during hot summers, but they are NOT ideal for root health in the long run.FWIW, swamps are not really stagnant. They can have stagnant periods, but water levels aren't really constant. Water flows through swamps albeit sometimes very slowly, but it moves. BC show optimal growth in areas that are temporarily (seasonally) flooded. There are numerous, extensive studies showing that. Warm Stagnant water (as in a summertime container) holds less O2 than water that is occasionally changed/drained...
I have never had a BC, but have worked with tons of different willow varieties and the thing I keep relearning is that although willows can survive for long periods of time with their roots completely submerged, they actually have optimal root growth (just like every other tree species) in a well draining medium such as, you guessed it, bonsai soil. Pans of water are a nice crutch when you don't have time to water said medium six times a day during hot summers, but they are NOT ideal for root health in the long run.
I suspect BCs are similar. The fact that they do just fine in bonsai pots suggests this as well.
Your seedlings' roots are not fully submerged in water like they would be in a stagnant swamp. So are we in agreement that some above-water parts are good? I use pans of water during the summer as well, but I'm not convinced that the roots are growing better because of the fact that they're fully submerged. On the contrary, root growth in trees generally is stimulated by frequent drying out, and thus I let my pans dry out before refilling for that reason (and also because doing so keeps the mosquito larvae in check).Compare the size of my two year seedlings to any BC not grown in water the same age and let me know what you think. @Mellow Mullet has been doing this for years for a reason. I think he removes them from the water tub during winter, but I really never had a winter, but maybe one or two weeks of freezing-below freezing temps. This year they were in water during the snow storm, frozen solid. If my winter was longer, I would remove them from the water during that time.
Those were repotted this year, I don't have a deeper tub yet, the one next to them that was not repotted, the water level is the same as the top of the soil after the system water it. They will be moved into individual tubs as soon as I find something deep enough that can be secured to the bench.Your seedlings' roots are not fully submerged in water like they would be in a stagnant swamp. So are we in agreement that some above-water parts are good? I use pans of water during the summer as well, but I'm not convinced that the roots are growing better because of the fact that they're fully submerged. On the contrary, root growth in trees generally is stimulated by frequent drying out, and thus I let my pans dry out before refilling for that reason (and also because doing so keeps the mosquito larvae in check).
Completely agree that they don't need to be submerged. Just stating that for a tree in development (trunk fattening) a surplus of water is needed. If I could set up and ebb & flow system to flood the trees every 30 min or so I would do it just to see if the extra oxygen pulled in when the water evacuates provides for even faster growing. I guess I need to pick Curtis brain one of this days and try to make one up.The ideal set up is to have shallow pans of water, less than 1/3 the depth of the pot under your bald cypress during the warm summer months.
Those were repotted this year, I don't have a deeper tub yet, the one next to them that was not repotted, the water level is the same as the top of the soil after the system water it. They will be moved into individual tubs as soon as I find something deep enough that can be secured to the bench.
I have read or at least browsed every BD thread here (or I am close to), and I have not seen the growth rate that John or I am seeing with the trees in water. I have seen trees that are on their 5th or 6th season that don't look to be the size of the one seedling that didn't get chopped this year. My 3rd season one is between 4-5" where the soil meets the trunk, and I am sure it flares more below it.
The metal bar is parallel with the tub edge, it gets full of water when the system finishes watering.
View attachment 446881
My 1 gal (this is its 3rd season, is completely submerged after the system runs.
View attachment 446880
In 3 seasons it is 4-5” from a seedling? Dang son I need to get one of these that’s sweet!
Totally agree with you Maiden69. I see BC all the time planted in yards and such (dry environments) and do fine. But there is a reason they naturally thrive in backwater and rivers. You made a point earlier about watering and then a outflow of water of the outer pot. Everytime I water it overflows a bit bringing in fresh O2 everytime. Will just keep an eye on the health of the tree. Thanks for the insight.Completely agree that they don't need to be submerged. Just stating that for a tree in development (trunk fattening) a surplus of water is needed. If I could set up and ebb & flow system to flood the trees every 30 min or so I would do it just to see if the extra oxygen pulled in when the water evacuates provides for even faster growing. I guess I need to pick Curtis brain one of this days and try to make one up.
As far as the quote, I think this will be the way to go once I move the trees into bonsai pots for refinement. Right now all I want is for them to get fat.
Not entirely accurate. Bald Cypress is a WETLAND tree. They are native to COASTAL PLAINS up and down the Eastern seaboard and Gulf Coast. That environment encompasses more than just swamps (which are defined as an area of low-lying, uncultivated ground where water collects; a bog or marsh.") There's a difference between standing water and a wetland. Wetland implies water, but not a constant presence, high water tables, seasonal flooding, etc.I can agree that BC will grow and survive in regular soil or on dry land, but if you really want them to thrive, submerge them-all summer-don't worry about ebb and flow, just submerge them. They are a swamp tree, you do not really see them naturally occurring in nature, except in a swamp. I have seen many BC on this site, most started out as a stumped tree dug out of, hold your breath, a swamp. A swamp! They love water, not just tolerate it, they tolerate regular (dry land). All of my BC are grown from seed, have been submerged in water 9 months out of the year, grow so many roots that I have 1 to 2 foot roots sticking out of the pot each season. Growing them in water works, if you don't believe it, look at some of my threads.
John
Rock on @Maiden69, I was listening to Edward the Great on the way to work this morning...