Agathis robusta

[ahosey01 369]

Shout out to @Silas_Sancona for turning me on to this tree.

Its a broad-leaf conifer native to Queensland.  San Marcos growers reports significant cold tolerance. An established specimen of theirs took 18F with no damage.

Planted this out from a 15 gallon.  So far, temps are down between 25F and 34F nightly, but back up to 70F+ each afternoon.

Wondering if these could become more popular in cultivation once the hardiness to both heat and cold is better understood.

[Silas_Sancona 3,910]

27 minutes ago, ahosey01 said:

Shout out to @Silas_Sancona for turning me on to this tree.

Its a broad-leaf conifer native to Queensland.  San Marcos growers reports significant cold tolerance. An established specimen of theirs took 18F with no damage.

Planted this out from a 15 gallon.  So far, temps are down between 25F and 34F nightly, but back up to 70F+ each afternoon.

Wondering if these could become more popular in cultivation once the hardiness to both heat and cold is better understood.

For most small yards, these will get too large.. or intimidate the heck out of some people once they're towering high above..  Ideal for parks / larger estates though. Question, at least here, is how well they'll tolerate our unique flavor of summer heat/ lack of rain/ low humidity.  Story behind moving the specimen at the Huntington is pretty interesting.

Selby Botanical's Agathis r. Sarasota, FL.  2/27/16:


 

[ahosey01 369]

12 minutes ago, Silas_Sancona said:

For most small yards, these will get too large.. or intimidate the heck out of some people once they're towering high above..  Ideal for parks / larger estates though. Question, at least here, is how well they'll tolerate our unique flavor of summer heat/ lack of rain/ low humidity.  Story behind moving the specimen at the Huntington is pretty interesting.

Selby Botanical's Agathis r. Sarasota, FL.  2/27/16:


 

Yeah - this is going to be a big boy.

Currently, it's partially under the canopy of a 40ft Fraxinus pennsylvanica.  Eventually, I'm gonna have to whack back some larger branches on the ash to let this thing grow up and through.

That - or I'll be dead by that point and my kids will have to do it.  LOL.

[Austinpalm 110]

Good luck.  I tried Agathis robusta in Austin, TX about 5 years ago.  Received a beautiful 2-3 foot seedlings from a well known mail order company.  Planted it in shade and it promptly died. Not sure if it was our alkaline soil or our summer heat and humidity.  Very cool plant. 

I had the same luck with Wollemia.  Bunya Bunya did well until a hard winter though.

Edited January 6 by Austinpalm

[ahosey01 369]

4 hours ago, Austinpalm said:

Good luck.  I tried Agathis robusta in Austin, TX about 5 years ago.  Received a beautiful 2-3 foot seedlings from a well known mail order company.  Planted it in shade and it promptly died. Not sure if it was our alkaline soil or our summer heat and humidity.  Very cool plant. 

I had the same luck with Wollemia.  Bunya Bunya did well until a hard winter though.

It seems strange that it would have been the heat, given that they're native to a very hot part of Queensland.  I planted it in some tremendous soil with a neutral PH, so - fingers crossed.

I'm going to erect a shade structure and allow the tree to grow upward into the unprotected sun.

[robertdowney1 0]

 

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[Botanicus 62]

I have one planted at my place [zone8-9ish], it has been in the ground a few years and is about 10' tall now. The new growth got burned at around 25F this winter, but otherwise it has been doing well.

[edbrown_III 163]

love this t ree --- rooting a cutting to grow here in Jax ----- I have a big Bunya Buny and a Hoop Pine in the yards as well as the Brasilian Araucaria angustifolium