I have a Dipladenia plant, which leaves keeping turning yellow. I pit dishwashing soap to clean up soil, and hopefully to quit losing yell0w, falling off leaves? I keep in bright light in my three seasons room during the winter. Thanks in advance for any help you may find.
Certified GKH Gardening Expert
Yellowing leaves could be watering issues; too much or too little, or temperature issues.
Water the plant when the top inch or so dries.
Make sure the soil is well draining.