plants/ shrubs for our community garden W12 7QT (Loftus Road W12)

NB : Photos shown here are of the garden when it first started in 2018/ 19 . It's not looking as good now hence the request. We really need 2 litre size of anything fast growing like asters, rudbeckia, verbena which attracts butterflies, bees and birds..We have grasses. roses , anemones and euphorbia but have lost all of the aforementioned to drought, animal trampling and the odd theft. We would be very grateful for all offers..If you live in and around W12 W6 W11 or W10 we can walk a large trolley over to you to collect or make arrangements to drop off. Perhaps you need something we have spare like wooden pallets or an office chair / s