Possible plant ID please

Post by **el48tel** » Wed Apr 20, 2022 5:34 pm

It's in a 5.5cm pot.
Raised from "mixed seed" origin not known but acquired from a branch friend who passed it on as a part used packet.

It is one plant .

Genera would be appreciated. Species would make my day .... yes I have simple tastes.

Post by **Aeonium2003** » Wed Apr 20, 2022 5:43 pm

Looks like Selenicereus Testudo seedlings. Or perhaps another selenicereus species.

Post by **Davey246** » Wed Apr 20, 2022 9:25 pm

They look very etiolated and bloated but what is now known as Peniocereus gregii?
Fibrous or tuberous root?
Shame the source is unknown. If from a general seed supplier, common species would be the norm, not so with specialists as they often throw lots of last season's seed together.

Post by **RAYWOODBRIDGE** » Wed Apr 20, 2022 9:41 pm

Selenicereus most likely , Harrisia a maybe .

Post by **el48tel** » Thu Apr 21, 2022 6:25 am

Aeonium2003 wrote: ↑Wed Apr 20, 2022 5:43 pm Looks like Selenicereus Testudo seedlings. Or perhaps another selenicereus species.

Thanks .... Selenicereus will go on the label

Post by **el48tel** » Thu Apr 21, 2022 6:27 am

RAYWOODBRIDGE wrote: ↑Wed Apr 20, 2022 9:41 pm Selenicereus most likely , Harrisia a maybe .

Thanks ... Selenicereus will do for the label. I did wonder about Harrisia.

Post by **el48tel** » Thu Apr 21, 2022 6:35 am

Davey246 wrote: ↑Wed Apr 20, 2022 9:25 pm They look very etiolated and bloated but what is now known as Peniocereus gregii?
Fibrous or tuberous root?
Shame the source is unknown. If from a general seed supplier, common species would be the norm, not so with specialists as they often throw lots of last season's seed together.

Fibrous .... and a lot of it .... I use mycorrhizal additives in compost (only comment if really necessary).
As for your comments about origin .... it came to me as a freebie ... I could have binned it ... it was a challenge or opportunity or "bit of fun" (a rare commodity among some cactus growers). I have 8 new plants .... 2 roughly identified ... 6 too small yet to identify ... "win-win" as far as I'm concerned.

Post by **Davey246** » Thu Apr 21, 2022 9:34 am

If it is Selenicereus, it is a mixed blessing. That said, the 3 species that I have grown did not produce multiple stems from/at/below ground level.
Selenicereus are borderline hardy at 5C and make masses of growth - the grandiflora that I grew was in a 14 inch pot on the greenhouse floor and it made a reasonable effort to cover the end wall of the greehouse. It never flowered for me - probably too dry???? too cool in winter????

Harrisia is a raggle-taggle bunch of species - some have ribs, which carry the aereoles, some do not. I have grown H. martinii, which does not have ribs, but did offset at ground level. That made arching stems to over 2 feet and did flower - spectacular, white, but unscented.

Harrisia would seem a better bet than Selenicereus, if it is either. (With fibrous roots, it isn't P. g.)

Post by **Herts Mike** » Thu Apr 21, 2022 9:38 am

I grow a Selenicereus outside all year round.

Post by **Davey246** » Thu Apr 21, 2022 9:55 am

Herts Mike wrote: ↑Thu Apr 21, 2022 9:38 am I grow a Selenicereus outside all year round.

What species? Does it flower?

Hardy to several degrees of frost is counter to everything that I have ever read or heard about the genus and I had always assumed that the marks on mine were due to cold.
If received wisdom is correct, planted-out, they should make yards of growth each (UK) summer if in a suitable spot. They are supposed to prefer indirect good light/dappled shade, rather than full sun - another reason mine were unhappy in all probability.

Possible plant ID please

Possible plant ID please

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