Pencil Cactus (Euphorbia Tirucalli) Shriveling after Repotting
I recently purchased and repotted a large pencil cactus.
After repotting, I gave it a good watering (probably too good) to get rid of any air pockets in the soil and covered the soil with about 2" of sandy gravel.
Many, many leaves and one branch have shriveled up, desiccated, and died; I'm certain because of over watering and the fact that the gravel on top was keeping that moisture in.
It has been two months. I haven't watered the cactus since and it seems to be stabilizing.
The cactus is in an east-facing window and the apartment never goes below 74 degrees; the cactus is about 8' in a 27.5" high diameter 27.5" pot
Going forward, I was wondering about how sparingly to water the plant.
Any help or suggestions would be greatly appreciated!!