Hoping someone can give me some ideas on how to help my poor Magnolia Teddy Bears?
Planted 23/12/17 in new soil (built up garden bed) with mulch and a good watering.
Holes in leaves noticed a few days later, nursery suggested caterpillars and we bought Confidor and treated early morning. Some black spots on lower leaves, they suggested we were over watering.
06/01 41 + degree day with extremely hot & strong winds. Watered plants well in the morning and just before lunch but only at the base, no leaves got wet.
07/01 leaves dry and crunchy, watering increased.
Leaves keep blackening, or going brown, curling and dropping off. The stems are still green so I have hope that they will come back.
Out of 9 plants there are 4 that are fine, one at one end and three at the other end of the garden bed. One in particular looks like its thriving and it's right next to the worst one.
Spoke to my Dad who is a pretty keen gardener and he is stumped. Not sure I trust the nursery advice so I'm looking to strangers on the internet to help my save the plants, my sanity and my wallet haha
Thanks in advance