autumn-leaf colours on older leaves and stress-induced flowering
Purpling and yellowing of older leaves while young leaves are dark
green, in a severely stunted plant (J.
older leaves turn yellow and then necrotic in irregular, often asymetrical
older leaves often develop red pigment, showing a range of
autumnal colours (purple, red, orange) as the background changes from green to yellow.
young leaves remain dark green.
with other symptoms
full fact sheet