Any ideas what would be causing this? I think I'm watering them enough, however I'm not sure what yellowing/fading green leaves/steams means. Does this color indicate they're in dire need of fertilizer? Any of you rose experts advice would be great. Thanks.
Patrick
There are many reasons why plant leaves lose colour and go yellow. It could be a deficiency, so fertilizing may be required, it could be a pest such as red spider mite. It could be a problem with drainage or too much water, or the soil Ph could be out.
When did you last give them a feed? How long have they been in that spot? Did they grow OK last year? Is it the older leaves, younger leaves or all the plant? Are the growth tips browning off? CAn you take a foto?
They could be getting too much water.