Have you given them any water-soluble fertilizer? They need fertilizing every three weeks or so. Impatiens do better if they get a bit of dappled sunlight daily.

If the plants feel normal to the touch & don't have any yellow on the leaves I don't think it's over watering, but they do need water more than other plants.

In your area, any issues with downey syndrome ?

I read about that. I don't think that (downey syndrome) is it.

I planted these late April, about 2 months ago. And it's been very hot--in the 90's--ever since, until this week.

I planted April 28. It was very warm. Was gone for 48 hours and came home to super hot weather and limp impatiens. Watered them well and they revived. Then May was unusually hot and the've just never taken off.

KS - Hope ur impatiens are coming along...if not, I would not waste any time and just get new annuals.

Impatiens used to be my annual flowerbed for like eternity until downey mildew set. I tried the following year, knowing full well it was a gamble. My imatiends died off mid summer, and I found myself replanting and not having a ~full luscious~ bed that year.

Since that year, I've stopped planting impatiens, and it was a learning experience. I've experimented with different annuals - I like small leafy compacts, etc but it has given me a opportunity to plant other annuals that I would have normally not even considered.

BTW, sunpatiens, new guinea and bounce are impervious to DM. The SP and NG have come down a bit in price, but I think the 4" Bounce is like $11 at my local nursery......Leaves, bloom size, etc - totally different than IW

My impatiens are not doing well and right now I'm having a hard time finding what I might want in a garden center. I really don't know what the problem was/is. It's not downy mildew, I'm sure. So for a shady bed, what would you choose that's white?

This time of the year, the nurserys are a hit or miss on on 6/8 packs so the 4" pot might be costly. White Bounce Impatiens or Vinca are lovely. I think everything mentioned is much taller than your IW .New Guineas do great in shade but you may want to look at a larger pot as the look is slighty different....they got some fat stems, so decide if you care about the fat stems

All 3 - foliage is much larger than IW but I'm sure you will notice that at time of picking.

I'm not a fan of landscape begonias but from afar/distance they do look good