My climbing Iceberg wilts and is not growing
I planted a 5 gallon Iceberg climber in late winter and it has grown just a few inches. It frequently shows signs of wilting a day after deep watering. This has been going on for months and it is now mid October and it is still doing the same. We did have a hot summer and I thought perhaps the heat had affected its growth rate. But now that the weather is cooler, it is still not showing not new leaf or stem growth. There has been a tiny bit of new growth (a few inches) in the last couple of weeks, but the new growth is weak and wilts almost immediately the next day after watering. I have deep watered weekly and even fill the planting hole with water from the hose when I am hand watering in between deep watering. What could cause this? The plant does get adequate sunlight. I have two other more mature healthy Iceberg climbers planted on either side about 10 feet away from this one. It doesn't seem to be a water issue. And should I just replace it with a new plant later this winter?