All of these rusts release the bright rusty-orange spores once spring weather becomes mild and damp, often around late March ...

Flowering currant is a classic example of a serviceable American plant that, when transported ... white pine blister rust. Above: The straight species of Ribes sanguineum growing near a lake ...

Plant a currant bush and you'll soon be picking lots of plump berries. White, red and blackcurrants are perfect for a sunny or slightly shaded spot, and once established are really easy to look after.