Joined: 30 May 2008 Posts: 42 Location: Fredericksburg, TX
Posted: Mon 26 Sep, 2011 9:35 am
It's been years since most of my nursery bought citrus has been upcanned and now they're going "on" the ground in a greenhouse along with others I've been grafting to Flying Dragon. I have the option of building 2' X 2' bottomless boxes, total height of 15" or going with Root Maker Builder material. Native soil is clay loam that the roots will eventually find. It's alkaline and calcareous. Pots will be backfilled with compost and sandy loam, open structure and slightly acidic.
Amazingly, the trees in 10 gal. pots have been producing since I upcanned them from 3 gal. The Mex Key lime must have 200 fruit after a huge recent bloom, this after losing all its leaves to a hard freeze last year. The pots were painted with a Copper Hydroxide paint called Griffin's Spin-Out for root tip pruning. Want to get the same kind of effect using rootmaker or the paint, BUT, will this Root Maker/Builder plastic hold up to about 10 years use? Shouldn't be any kind of mechanical pressure on the sides from the roots it they're pruned.
Also need to put 3 avocado trees into some kind of container, much bigger though, at least 4' X 4' W, perhaps 2' tall.
FWIW, using my tractor I ripped (fractured) my hard native soil with a subsoiler/chisel to a depth of 20" before the greenhouse was erected.
Joined: 13 Nov 2005 Posts: 6656 Location: Colorado
Posted: Mon 26 Sep, 2011 12:08 pm
I have a Chandler Pummelo growing in a Root Builder container. I used the 30-inch tall roll and made a 2-ft. 3-inch diameter container. I don't know who many gallons the container is, maybe 60+ gallons. The tree has been in the container for about 1 year. I can't say how long the container will last, but I have smaller sized containers built out of Root Builder that are well over 5 years old. All of my Root Builder containers (40+) are inside of my greenhouse, and not outdoors in the elements. Anyway, it is very easy to clip the ties and apply a new roll around the root ball without much disturbance at all. All in all I would say a 10 year life outdoors would be a stretch. - Millet (476-)
Joined: 30 May 2008 Posts: 42 Location: Fredericksburg, TX
Posted: Tue 27 Sep, 2011 10:08 am
Thanks for the info. Like I said, they are being planted in a greenhouse on top of ripped native clay loam so based on your experience sounds like they will last. Expensive stuff though, you wouldn't happen to have a name of a supplier? I searched and came up with one that was outrageously high.
Joined: 13 Nov 2005 Posts: 6656 Location: Colorado
Posted: Tue 27 Sep, 2011 12:04 pm
I purchase all of my Root Maker items directly from Root Maker Corp. They sell both retail and wholesale. http://www.rootmaker.com/ Root Builder comes in either 18" high or 30" high rolls that are 100 feet long. You can make many containers, of any size you desire, from a roll. - Millet (675-),
Joined: 30 May 2008 Posts: 42 Location: Fredericksburg, TX
Posted: Sat 15 Oct, 2011 10:35 am
Millet wrote:
I purchase all of my Root Maker items directly from Root Maker Corp. They sell both retail and wholesale. http://www.rootmaker.com/ Root Builder comes in either 18" high or 30" high rolls that are 100 feet long. You can make many containers, of any size you desire, from a roll. - Millet (675-),
Hi Millet, got a roll of Root Builder 18" yesterday and am now having second thoughts about the height and using it at all. For starts, it actually measures 16.5", not the 18" advertised. They said they would take it back in exchange for the 34", which apparently finishes out to 32.5". I'm following Dr. Whitcomb's 4" rule and starting with a diameter of 30" coming out of 10 gal. pots. Any thoughts on this? The 16.5" seems a little short, the 34" seems to be overkill considering uptake efficiency improves 500% with the fibrous nature of pruned roots.
BTW, the citrus has been in these pots for at least 4 years and produces. I painted the pots with Griffin's Spin-Out to get the same root tip pruning as air pruning.
Joined: 19 Jun 2009 Posts: 523 Location: Romania Zone 6a
Posted: Sat 15 Oct, 2011 4:42 pm
Millet wrote:
I purchase all of my Root Maker items directly from Root Maker Corp. They sell both retail and wholesale. http://www.rootmaker.com/ Root Builder comes in either 18" high or 30" high rolls that are 100 feet long. You can make many containers, of any size you desire, from a roll. - Millet (675-),
Millet do you know where can I find some rootmaker pots in Europe?
Joined: 13 Nov 2005 Posts: 6656 Location: Colorado
Posted: Sat 15 Oct, 2011 7:10 pm
Mark, when I made a container for my Chandler Pummelo, I used the 30" high roll of Root Maker and cut it back to 27 inches tall. You will certainly need at a minimum a 20" tall container, as 90 percent of a citrus tree's root system is in the top 20" of soil. In the Pummelo container I gave it an additional 7" in height, by cutting the roll down to 27". You can use the 30" roll and make it any height you desire. I think the taller roll offerers a lot of advantages.
Danero, sorry I do not know where Root Pruning containers are available in Europe. I know MeyerLemon who lives in Turkey, ordered a bunch of products from Root Maker and I guess he must have had them shipped from the USA to Turkey. You can ask him how he got them. Find him in the membership list and send him a PM. = Millet (457-)
Joined: 23 Feb 2011 Posts: 39 Location: Denmark, Zone 7
Posted: Sun 16 Oct, 2011 7:32 am
I use the Air Pots from Scotland, they do deliver to Romania but shipping is really expensive, too expensive. I paid 60$ for a package weighing no more than 2kilo
Joined: 30 May 2008 Posts: 42 Location: Fredericksburg, TX
Posted: Mon 17 Oct, 2011 12:45 am
Millet wrote:
Mark, when I made a container for my Chandler Pummelo, I used the 30" high roll of Root Maker and cut it back to 27 inches tall. You will certainly need at a minimum a 20" tall container, as 90 percent of a citrus tree's root system is in the top 20" of soil. In the Pummelo container I gave it an additional 7" in height, by cutting the roll down to 27". You can use the 30" roll and make it any height you desire. I think the taller roll offerers a lot of advantages.
Danero, sorry I do not know where Root Pruning containers are available in Europe. I know MeyerLemon who lives in Turkey, ordered a bunch of products from Root Maker and I guess he must have had them shipped from the USA to Turkey. You can ask him how he got them. Find him in the membership list and send him a PM. = Millet (457-)
Thanks for the advice. Once again, Rootmaker does not sell a 30" height. It's now a 34" which falls short during the molding process. 16 .5" (the 18") is too short, 32.5" (the 34") is too tall and a waste of money.
92% of avocado roots are in the top 12" of soil, depending on who you talk to. I've also heard they can go 3' deep depending on soil conditions and frequency of rainfall or irrigation.
FWIW, you can take any pot you want and paint the inside with a copper hydroxide type paint like Griffin's Spin-Out. Its been used within the forestry biz forever. It chemically burns the root tip, the Cu is not translocated behind that root tip into the rest of the plant tissue, and does no environmental damage.
Joined: 13 Nov 2005 Posts: 6656 Location: Colorado
Posted: Mon 17 Oct, 2011 1:12 am
Mark, it has never crossed my mind to measure a Root Maker roll. Some how I have always thought that the tall roll was 30 inches. Therefore, after reading your above post I went out and measured my tall Root Maker roll. It is indeed exactly 34 inches tall, just as it is advertised. I also measured the smaller Root Maker rolls and they are a full 18 inches. About wasting money when I cut down a roll, maybe your right, but we are certinly not talking about much money. Besides, I wanted a 27 inch roll. - Millet (456-)