About How Long Would It Take An Archontophoenix cunninghamiana From Seed To Get This Big?

[PalmTreeDude]

About how long would it take and Archontophoenix cunninghamiana from a seedling size to get this big? With ideal conditions. Not my picture (link https://www.coastpalms.co.nz/catalogue/bangalow/) 

 

[Tyrone]

It depends on your climate. If you had the perfect climate and fed and watered it absolutely 100% I reckon you could germinate it and get it to that size in maybe 4 years. In lesser climates with less care and attention longer. Archontophoenix can be super quick in ideal conditions. If you pot it up the second it starts throwing roots out the container then you get fast growth I’ve found with Archontophoenix. They can be hungry thirsty beasts.

[palmsOrl]

I was going to say 3-4 years with truly ideal subtropical rainforest conditions.

[Jim in Los Altos]

They can be really fast growers. They're the fastest palms in my garden and I have over 130 species of palms in the garden. These were all planted from 1 gallon containers except for the volunteers from seed dropped on the ground. Fifteen years for some. Some of the volunteers are well over twenty feet tall in just seven years from seed! 

[dalmatiansoap]

Wow!

[Kim]

I was going to guess 2 years for East Hawaii Island. The Archontophoenix alexandrae which have naturalized on the island pop up everywhere. If I don't yank them out when they are seedling-size, they quickly begin trunking and it takes more effort to remove them. It's not that I dislike them -- there are way too many and if left to grow they would take up all the real estate! They are very fast growers, prolific with seed and germinate easily.

[enigma99]

Jim’s 20 ft seedlings in 7 years is a good example how archies don’t like to be transplanted beyond 15g. My fastest ones are actually 1g or so and quickly overtake the 24” boxes in a few years!  So plant them small for the quickest speed. With lots of water, these are crazy fast

[realarch]

Boy Jim, that's fast. Twenty feet in seven years......that's as fast as here in Hawaii. Older ones here in Hilo get super tall though, 40 or 50 feet.

In reference to the original inquiry, I'd say they get to that size in 3 to 31/2 years here in East Hawaii. 

Tim

[aztropic]

Just for an idea under extreme (for this species) Arizona desert conditions,about 8 years to that size from seed.Once trunked,it grows a little faster.Unfortunately,once it gets tall enough to grow out of protecting shade,the fronds burn up and the tree dies.Ask me how I know...

Here is an alexandrae about 13 years from seed whose days are numbered.

 

aztropic

Mesa,Arizona

[Jim in Los Altos]

On June 3, 2019 at 12:02 PM, realarch said:

Boy Jim, that's fast. Twenty feet in seven years......that's as fast as here in Hawaii. Older ones here in Hilo get super tall though, 40 or 50 feet.

In reference to the original inquiry, I'd say they get to that size in 3 to 31/2 years here in East Hawaii. 

Tim

Yes indeed. I think A. cunninghamiana, especially 'Illawara', perform incredibly well in cool temperatures as well as warm. Some of mine have more than 12" between leaf scars on their trunks. 

[Arturo Boston]

I’m growing an Alexandrae in Puerto Rico.   It’s a triple.   First year it was yellow and didn’t  grow much I thought it hated my clay soil.   But under two  years in, it’s forming its first rings of the trunk from about a foot and a half tall seedling. In a three gallon pot when i planted it.   Planted July 2022 the recent pic taken last week.  So it hasn’t been two years yet.  It’s almost 8 feet tall. Rocket. 

[Bkue]

I agree with 3-4 in ideal conditions 

[PindoPalm]

3-4 years with ideal conditions longer if not