My Ponytail Palm plants look terrible
I've had these 2 ponytail palms for nearly 3 years. I adopted them from a friend moving out of town. They were sad & stunted. They have been flourishing ever since until now. They enjoyed a growth spurt last year when I put them out on the balcony. Now the leaves are turning yellow & then dying. Since it was a "too much water" yellow I laid off the watering. Didn't really improve anything. Now that I've moved them out on the balcony again the leaves are getting yellow faster & are droopy. I fertilized all my plants last week. The trunks are turning pale, straw yellow & a dark purple. I'm so sad. The only thing I did differently was I put a layer of stones covering the soil. I've since taken them off. I have photos but I'm not sure how or where to post them.