Nutrient deficiency?I'm a slight bit worried about the yellowish/green color they are getting. Not sure what is going on with that.
Nutrient deficiency?
Just looks like their not getting enough light to me.
I think that it's as much to do with the light colour as the intensity. I find that Cephalotus colour up nicely under white LED. Most white LEDs are actually blue with phosphor coating, therefore have a strong peak in the blue spectrum. I have read that levels of anthocyanin, the plant pigment responsible for colouration, increase under blue or UV light.Might as well update this one too.
The big Cephalotus has colored up some, although I'm still hoping for more color. I don't understand Cephalotus coloration...the same clone under less light is way darker than this one.
I think that it's as much to do with the light colour as the intensity. I find that Cephalotus colour up nicely under white LED. Most white LEDs are actually blue with phosphor coating, therefore have a strong peak in the blue spectrum. I have read that levels of anthocyanin, the plant pigment responsible for colouration, increase under blue or UV light.
The big Cephalotus has colored up some, although I'm still hoping for more color. I don't understand Cephalotus coloration...the same clone under less light is way darker than this one.
Red coloration on a Cephalotus is dependent on the clone, light intensity AND temperature.
These plants on the picture are of the same clone (at least I think so, they are mass produced plants purchased from the same table in the same shop with the same green starting color, but have had different cultivation conditions):
The green plant has been kept indoors at about 20°C and artificial lighting.
The reddish plant has been kept outdoors, about 5 hours of direct sunlight, from May until November.
Most of the red coloration appeared with falling temperatures outdoors during September, October and November while the midday sun elevation and the temperatures were much lower than in July/August.
So if you notice better red with lower light levels, then maybe the additional heat dissipation if the "better" light (more Watt = more heat, less distance to the lamp = more heat) prevent better coloration because of higher temperatures under the "better" lights?