Honeysuckle vines
I have two planters in a sunny spot on my porch with this plant in it , a few weeks ago the bottom leaves started to get kind of spotty and yellow and fall off, it had been growing really…
Tag Archives: Powdery mildew
Powdery Mildew
It appears as though many of the flowering plants in my garden have powdery mildew. There’s a grey substance that covered the leaves; some of the flowers died, others did not bloom. There also seems to be bugs: small orange…
Spots on Japanese Maple
I have spots on my Japanese Maple leaves in addition to some leaves which are withered. I assume the latter is due to not enough water.
Please advise me re the cause of the spots and if there is a…
Purplelicious Veronica
I have several Purplelicious Veronica plants that were planted last summer. They survived the winter and looked fine for the first several weeks but now the first growth looks yellow and unhealthy. Last summer I had a problem with mould…
Wilting leaves on Japanese Maple
Hi – We have a 4 year old Bloodgood Japanese Maple that started suffering from some die-back last season. This spring, it did not fully leaf out and the leaves that did are mostly wilting and covered with a white…
Zinnias and Powdery Mildew
The zinnias I planted were doing very well but have developed some white dusty leaves and aren’t looking as healthy. What am I doing wrong? Over-watering? Is this mould?…
Phlox
What mildew resistant phlox would you recommend for part shade ?…
Polemonium caeruleum- Jacob’s Ladder
Hello, my Polemonium caeruleum which has only been planted for a few weeks has developed white spots on its top leaves. Could I be watering it too much?…
Replanting where Shrub had Powdery Mildew
I just removed a tall nanny berry viburnum from my garden. It had suffered from bad powdery mildew for a few years, and the shrub was too big for me to treat and control it. As the spot is in…
Disease on Potted Begonia*
I brought in two potted begonias from my porch when the weather turned cold, about six weeks ago. They have recently developed white spots on the leaves. Could you tell me what this is and what to do? Are other…