Help with yellow leaves on Wisteria please

Michelle117

Hi

I bought 2 Wisterias in April and both were doing really well growing very quickly until I noticed a couple of days ago that they started developing yellow leaves.

One is in a very large tub and one is in a very large trough. 

Could the soil be lacking in something ?

Thanks for any help

Michelle

Obelixx

Moisture first, then food.  It's a bit late to be feeding plants so make sure they're getting adequate moisture and, if you like, give them a foliar spray of 15ml of Epsom Salts dissolved in 5 litres of water.  If you can't spray it, water the mix onto each container but add a soluble aspirin too.   Both compounds help revive sickly plants.