Pieris Forest Flame problem

Hi there!

My favourite Pieris (Forest Flame) looks unwell recently & I do not know why, I have only had it a few days & then moved it into a pot with Ericaceous soil & mini bark chips on top, recently I have noticed a browning on the leafs, Past few days we have had a lot of sunshine with top temps of 20 degrees so im thinking maybe it was too much sun & it has burned the leafs, I don't really know many shady spots in my garden which is a shame as this plant is so beautiful!

It gets watered thoroughly once or twice a day depending on how sunny it is & recently i've been using a few drops of Orchid feed in the water (mother in law suggested i use it)

any help would be appreciated as i do not want this to die!

 

Keen to see how this progresses as mine is doing just the same right now! Fingers crossed for you...

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