Konstantinos, any available update about how those krociana? 

Just got this Krociana recently, any photo updates out there I can take a look at would be appreciated. Hope mine can take the sun and doesn't burn.

Thought I'd bump this thread as there are some real gems in this genus & never enough information about them. Please post away..

I only have the generic R. Rivularis , my friend has Glauca . It is much more compact than the huge trunk on my old “Rivie” . They are truly Madagascar’s gems. Years ago the Palm Society did a great expose on this palm . More to it than I thought….. Harry

So here’s a R. lakatra 10 years from a seedling; as mentioned earlier, it doesn’t appear to be one of the giants. And looking up into a fast growing sp “new”, possibly madagascariensis?

Here’s my glauca post blooming.

A slowly growing R. sambiranensis.. And a sp. “giant”— still no name as far as I know. Plugging away, about 13 years old, but otherwise reasonably happy.

There’s a few good glauca in my garden.

3 hours ago, happypalms said:

There’s a few good glauca in my garden.

It's quaint how you call your forest your garden😊

I planted 4 "sp. giants". After getting my camera battery charged, I went out this evening this evening to take the following 3 pictures. They are much bigger now, having grown well. I use the lawn chair for scale. The first shows two female trees. They have been flowering and producing seeds that ripen red, unfortunately non-viable because I don't have male pollen to fertilize them. The second shows another one that has grown well, has a crown even larger than the first two, but has a much shorter stem at this stage. It has never flowered. The third pic is one that has never been as healthy and easy growing as the first 3, included just to show that there are some that lag behind.

Raveneas have done well for me here. I guess they like the climate without strong highs and lows, and the heavy rainfall.

Besides sp. giant, I have dransfieldii, glauca, krociana, lakatra, madagascariensis, sambiranensis, and xerophylla. I have never grown rivularis, which looks fine to me, but I saw so many when I lived in Florida that I decided to focus on other varieties. I especially like lakatra because it is an exceptionally beautiful palm. I have 4 of them in my front yard reaching heights of maybe 12 feet. I lost my one julietae, and two other krocianas (the remaining one is fine and has got quite large).

Seeds of sp. giant were from Ortanique and sown in summer 2006. One was planted in summer of 2009 (I don't remember which one). The other 3 were planted in February and March 2011.

Whoa Mike, awesome pics. First cultivation pics of trunking specimens I've ever seen. Thanks for sharing!

12 hours ago, Gardner said:

It's quaint how you call your forest your garden😊

I always wanted a rainforest garden, a lot of people call the rainforest the jungle. And others have said to me your jungle looks amazing. But for me it’s my garden. That happens to be the size of a mini rainforest.

Here are a couple more: first up is one of two krocianas that came from Floribunda about 12 years ago, about the size of my pinkie at the time. So I’m very proud that they are all of waist high now. Might even look like a palm in a few years. The 2nd one is just unknown to me, but another very upright and pretty stiff leaves. Possibly robustior maybe?

This beast Is labelled Ravenea sp Giant at Flecker Botanic Gardens, Cairns AUS. To me doesn’t look like Mike’s above which look more closely aligned to R rivularis.

I would agree Tim! I remember even Jeff Marcus at Floribunda palms prior to selling species “giant” as seedlings, saying something to the effect that they appeared to be more closely aligned with rivularis, at least in habitat. But they’re definitely their own thing, and way slower.

8 hours ago, mike in kurtistown said:

I planted 4 "sp. giants". After getting my camera battery charged, I went out this evening this evening to take the following 3 pictures. They are much bigger now, having grown well. I use the lawn chair for scale. The first shows two female trees. They have been flowering and producing seeds that ripen red, unfortunately non-viable because I don't have male pollen to fertilize them. The second shows another one that has grown well, has a crown even larger than the first two, but has a much shorter stem at this stage. It has never flowered. The third pic is one that has never been as healthy and easy growing as the first 3, included just to show that there are some that lag behind.

Raveneas have done well for me here. I guess they like the climate without strong highs and lows, and the heavy rainfall.

Besides sp. giant, I have dransfieldii, glauca, krociana, lakatra, madagascariensis, sambiranensis, and xerophylla. I have never grown rivularis, which looks fine to me, but I saw so many when I lived in Florida that I decided to focus on other varieties. I especially like lakatra because it is an exceptionally beautiful palm. I have 4 of them in my front yard reaching heights of maybe 12 feet. I lost my one julietae, and two other krocianas (the remaining one is fine and has got quite large).

Seeds of sp. giant were from Ortanique and sown in summer 2006. One was planted in summer of 2009 (I don't remember which one). The other 3 were planted in February and March 2011.

Would love to see what a trunking lakatra looks like!