Wisteria Seedlings in Al's Gritty Mix
I have two young seedlings that I have planted in Al's gritty mix - one Wisteria Sinensis and one W. Sinensis Alba. They are outside and have been very slow to get started. They currently have 3 -4 sets of leaves but seem to have stalled. They are in clay pots and I have just added a clay tray underneath to keep the moisture level a little higher. My question is will they thrive in the standard 1-1-1 gritty mix or should I add 15% peat to the mix to increase moisture retention.
Thanks for any suggestions.