Why Is My Donkey Tail (Sedum morganianum) Turning Yellow?

Outdoor Donkey Tail in Southern California shows yellowing beads. Causes: overwatering (delicate roots rot easily), excessive direct sun (prefers bright indirect), aged plant (sedums eventually decline), nutrient-poor soil (likes sandy, unfertilized mix), aphids (distort beads), or overcrowding.

Check roots: if healthy, repot in fresh well-draining soil. If brown/black and mushy, take cuttings, discard roots and soil, sterilize pot. Cuttings root easily. Ensure it's not in scorching afternoon sun. Repotting every year or two prevents soil exhaustion and root binding.

Without seeing the plant, the exact cause is uncertain, but addressing drainage, light, and soil covers most bases.