Why don't my heucheras thrive?
I like them so much, but I'm becoming disillusioned with them. It's hard to enjoy a plant that gets smaller and smaller every year. Caramel is one of the few that thrives, but most start to shrink about year three.
I have sandy, alkaline soil, mostly on a slope. I plant them among hostas so they do get a lot of water but have good drainage. Varying amounts of sunshine around yard.
Do you all lift yours every other year? I tried that with three in a row. One looks great now, but the other two are pathetic. Not a good ratio of success for my efforts.
Do you have to fertilize them a lot? I never do, just some compost and mulch, if they're lucky. I'll make the effort if that's what they need.
Is my zone 5 iffy? I notice a lot that are great looking on this forum are in zones 7 and 8.
Are they just very short-lived plants? Too much time and $$$ spent for this to happen.
I'm getting close to throwing in the towel on them but not quite ready to give up yet. Any advice for me?
Here's a pic where I was focusing on the hosta, but look at about 2 o'clock and you see how so many of my heuchera get so small they're only a few inches. I don't expect much more growth than it has now. Opposite of thriving.