I planted several hanging baskets with Surfinas and Petunias. The plants were all growing well but in one basket plants suddenly started to die off one after the other. I replaced some of the dead plants but after a few weeks the replacements began to die off too. All other baskets seem to be doing OK. Could it be some sort of disease confined to one basket and if so in there anything I can use to treat the other baskets if the plants in these start to die?
Over the past two years two rhododendrons have died - one established and one new plant. Both were planted in correct compost and I fed regularly with ericaceous plant food. Leaves curled and sagged and eventually fell from plants - buds turned brown. Two camellias did the same.I suspect root and crown rotCould i be correct Thanks