We planted 3 Phlomis pants purchased from Crocus last year and while we have lots and lots of leaves no flowers have appeared, we added sulphate of potash around the roots last month but no noticeable difference still just leaves. the ground is mainly spent compost , leave mould and soil. when is the best time to transplant these plants to a more free draining /grit soil?
I think the simplest answer is that your soil probably contains too much nitrogen. You may want to do a soil test to be sure. Excess nitrogen generates lots of leaves, but doesn't allow for flowering.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/too-much-nitrogen-soil.htm
Since the plants are otherwise healthy, it doesn't sound like a drainage problem. If you can wait until spring to transplant them, they might respond better, but wait until there's no more chance of frost.
does the lungwort flower become the seed after dying? if so can they be stored for planting in spring?
They are clumping plants that quickly enlarge. You can dig up the clump in spring or fall and divide and replant. Regular division will help them live longer. They are considered a short llved perennial. They will also reseed, but if you have a hybrid, the seeds won't grow true to the parent. They produce a nutlet containing one seed.
https://www.gardeningknowhow.com/ornamental/flowers/lungwort/growing-lungwort-flower.htm
this plant is about 4 years old and has been vigorous in previous years. We live in Utah and had a record-breaking snow load. So does the plant have a fungus? how to treat?
It could be powdery mildew from too much moisture and not enough air circulation. These articles should help:
https://extension.umn.edu/plant-diseases/powdery-mildew-flower-garden
https://plants.ces.ncsu.edu/plants/pulmonaria-officinalis/
https://www.gardeningknowhow.com/ornamental/flowers/lungwort/winterizing-pulmonaria-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/lungwort/growing-lungwort-flower.htm