Why Is My Hoya Kerrii Turning Yellow. If you are watering your sweetheart plant correctly try moving your heart-leafed plant out of direct sunlight. As as we all know damp potting medium with Hoyas is a no-no.
05022010 hoya generally do like to go quite dry before being watered again and the two close-together waterings are probably the problem. Moreover pest infestation and nutrient deficiency can leave yellow spots on the foliage of the Hoya plant. Ive lost a few to rot before.
Right now i have a couple that are doing really good.
Yellowing is a sign of too much water or too much direct sunlight. Hoya kerrii leaves curling may be due to low humidity and improper watering. Shake the potting soil off the roots to get a good look at them. Third if there is mold on the soil it is definitely staying wet too long.