Hi Everyone , can somebody help me solve a problem,some of my plants have yellow leaves and green vains, i think its a mineral deficiency, does anyone now what i should use to change this, the plants are foxgloves so far but more plants get affected in the summertime other than that they grow around 4ft tall and flower well, Lupins,and the odd Iris, im on chalk ground in wiltshire
thanks
windy :)