The plants are 20 years old and flower every year. I recently pruned a nearby tree which means the arch now has more light. What can I do ?
14 January 2021 03:48 PM
Hoyas don't fare well in full sunlight. While they can handle morning sunlight, they will not tolerate the harsh afternoon light. You may need to erect a shade cloth or similar to help diffuse the light, otherwise, leaves may continue to drop from heat stress.