testing a switch to wide & shallow containers

[brian]

I start all my new citrus trees in rootmaker pots when I receive them.  When they have produced a few crops of fruit I then decide their fate.  The best ones are planted in the ground in my greenhouse.  The next best I put in a solid container and prune foliage and roots to a reasonable size, usually 3-4ft of canopy.  The rest, because it makes me sad to totally lose a variety, I graft to flying dragon and keep as forever dwarfs and then get rid of the original.  This ends up reminding me a lot of bonsai culture, so I read a bit on bonsai to see if there was anything applicable.  Bonsai seems to be mostly focused on appearance but the one thing that stuck with me is the very wide & shallow containers used.  I remember seeing photos of large hurricane-overturned in-ground citrus trees and being surprised how wide & shallow their roots are.  And I have found the most common cause of decline in my container trees is too wet or too dry soil, sometimes seeing both in one container... a rotting impermeable layer on top and dried out soil below.  Despite my best efforts to use free-draining mixes I forget to repot and trees that seem to look great are actually suffering from mulch breakdown, and I don't notice until it has become severe.  So, I happened to find some 15gal pan-like containers at the hardware store and I figured I would give them a try.  They are 15gal, about 2.5ft wide but only about 5in deep.  Now that winter has passed when I pulled all my container trees out of the greenhouse for repotting I spread and cut back the roots until they would fit in a much shorter space.  For the tiny flying-dragon-grafted trees I did something similar but with smaller nursery pots and cut the excess rim off.

this is a marumi kumquat



this is a guava, but same idea



I did this with a half dozen trees but I didn't take pictures of them all. 

[Vlad]

Please provide more information on these containers, e.g., manufacturer, model no..

[brian]

the brand is Maccourt, I think this is it:

https://maccourt.com/product-category/plantainers/

[poncirsguy]

Your trees look good.  I have been using shorter container to.  Mine are not that short.  They are 55 gallon drums cut in half.  That makes for greater diameter  than depth but not shallow like yours.

[brian]

I have been looking for 55gallon plastic drums for quite a while to do that but while previously they were sold for $10 each I now see them listed for $40 each which is more expensive than buying two nursery pots.

[Millet]

.brian, the trees you show look very well balanced, healthy, and amazingly well taken care of.  What is the mix you are using in the shallow containers  (turface & MG) or 5-1-1

[brian]

.brian, the trees you show look very well balanced, healthy, and amazingly well taken care of.  What is the mix you are using in the shallow containers  (turface & MG) or 5-1-1

Thank you.  I am not sure exactly what my mix is anymore as I keep recycling it into a big pile on my patio.  When I repot trees I dump their old soil onto the pile and add only fresh coconut husk mulch until the texture feels right.  There is a significant amount of turface, perlite, and spent osmocote prills that remain intact.   After the fresh mulch is added it is probably something close to a 5-1-1 mix.

[tedburn]

interesting concept Brian, don' t you feat that the pots get dry too quickly in summer ? Best regards Frank

[Francis_Eric]

the brand is Maccourt, I think this is it:

https://maccourt.com/product-category/plantainers/

What is the Price of each at store ?
Brian I clicked on the product but no price
(no wonder everyone shops at Amazon Nowadays  stupid web sites no longer  have any prices!)

[brian]

interesting concept Brian, don' t you feat that the pots get dry too quickly in summer ? Best regards Frank

I am setting up a sprinkler to water all of the container trees on my patio, I am hopeful that once a day is enough even on the hottest days, but it wouldn't be too hard to run it twice if needed.  I have some hose timers in case I go on vacation.


Francis, I think these were $15/ea at Lowes.  Not cheap, but after spending all winter looking for a free/recycled option I decided I wasn't waiting any longer. 

[Melenduwir]

For smaller bonsai-like plants, I've actually had good results with the plastic containers used to package tofu.  The biggest problem with bonsai dwarfing is that the plants can require daily watering, but if you're willing to invest the effort...

[Francis_Eric]

Thanks I remember now I find these for free A breakfast diner throws these out
(maybe try )

rectangle plastic commercial food pans.

I also saw one in a dumpster when I had a very strange dream of a house
 I went over by that house that is how I remember where I find these..
(one was  in there, & also maybe save $50 of other large rubber bins I've needed)


I was Initially going to say what about dollar store cat liter box
not sure how toxic these plastics are of cat liter box (*but should have plastic code labeled )

(edit the ones I find are thick black  plastic like dog food bowls , but rectangular  maybe I should sell them)
 

[brian]

rectangle plastic commercial food pans.

this is a good idea, but so far the metal ones seem to cost at least ten bucks each new, and the plastic ones won't have UV blockers so they won't last.

I wonder if I can find some cheap cake pans.

[poncirsguy]

When testing a switch for deep to shallow pots.  What kind of switch do you use.  I have a knob and tube 4 way switch  Is that overkill or is it better.  The switch I have was discontinued about 75 years ago when things were built great.

[brian]

hah, I know you are joking but I have a box of ancient switches just like that from the "junk bin" of misc hardware passed down from my family.  It reminds me how much I hate working with flat-head screws

[hornad]

When performing an experiment nothing less than one of these switches will do

[Citradia]

Bonsai. When cultivating bonsai using fruit bearing trees such as citrus or crabapples, one usually uses a little deeper pot to provide a little more nutritional support from a larger root mass. Need good drainage, regular watering, and adequate fertilizer to keep up with the frequent watering.