poa?? what is it? and how do I kill it? What products do people recommend?

Day Lillies are prone to scale and aphids. I know every year for the past few years I have had the same problem. Look real close to where the buds are the part of the plant that covers the bud I dont know the correct name for it but it almost looks like a new leaf but its covering the new buds, pull that back and break that off look at it closer and if there is a white looking little grains those are the bugs. You can treat it with a insecticide that treats scale.

PK I haven't watered at all this season until recently and then it is 2x week at 12 min per zone. bostedo thanks for the feedback, I've applied ironite or some such suppliment a few years back when it first started and I think it might have helped a bit but didn't seem to really fix it. Whats strange is the other side of my yard across the driveway is fine so I'm skeptical it is the soil. I did have a soil test a couple years back let me dig that up to take a look at the pH. I went ahead and applied a copper/neem oil spray yesterday to see if that will help if it is a funguns. I'll look into your suggestion on iron plus. I will try to post a better pic that shows the 'area' of the lawn that is affected. Further back towards the fence (this is in the front yard) it is green and fine.

Leaves crisping at the borders is usually a problem with water or something else interfering with the roots' ability to do their job. And, although you've successfully grown in containers before, this summer has been unusually dry and hot in the NE. I would take that into consideration. Some nutrient deficiencies also produce crispy borders. It's very easy to develop nutrient deficiencies when you piece together specialty niche products as you're doing, either by missing out on a nutrient or creating excesses of some nutrients which interfere with the take-up of others. I find that the best policy is to get one well-balanced formula for fruiting vegetables and stick to that unless you actually see signs of an actual deficiency that needs correcting. Personally, other than a general all-purpose formula I use for seedlings, young transplants, and leaf vegetables, I just use a tomato formula for all my fruiting veg and simply supplement with extra nitrogen for plants such as peppers that like more N. Things like pre-emptively using epsom salts and mineral formulas and micronutrient formulas are more likely to cause problems than prevent them, IMO, unless you have actual soil tests done which show deficiencies in those nutrients. I would try flushing the pots out with a LOT of water and then seeing whether things improve after that. Not chronic flushing, as that could make things boggy and lead to root rot. Just one good, serious, thorough flushing, then waiting about a week before you start feeding again and using a diluted liquid tomato formula alone when you do.