The Park is located on the North Bank of the Thames: just Upstream from the Thames Barrier viz.
We hoped to find a few Hoverflies and some Wild Flowers: and were successful, up to a point.
The Park itself is regularly mown: nevertheless, we managed to find quite a few Wild Flowers both in the Park (which includes a couple of small 'Wild Areas', where we found Common Mallow, CommonRagwort, Creeping Thistle, Goat's-Rue, Mugwort, Wild Carrot, Yarrow &c.) and the Surrounding area.
Sadly though: with lots of new Residential Developments, the area generally qualifies for the Description, Concrete Jungle! Not a place we will probably ever return to. And we found the 'Sunken Garden' disappointing.
Wild Flowers found:
Annual Meadow-Grass Black Horehound Black Medick Bristly Oxtongue Buddleia Common Chickweed Common Mallow Common Orache Common Ragwort Common Stork's-Bill viz.
Common Toadflax viz.
Common Vetch Creeping Purple Creeping Thistle Daisy Dandelion Dove's-Foot Crane's-Bill Fat Hen Goat's-Rue Groundsel Henbit Dead-Nettle Herb Robert Knotgrass Mugwort Petty Spurge Phragmites (on the Thames Foreshore) Prickly Lettuce Procumbent Pearlwort Purple-Leaved, Procumbent Yellow-Sorrel Redshank Red Clover Ribwort Plantain Sea Aster (on the Thames' Foreshore) viz.
Scarlet Pimpernel viz.
Shepherd's Purse Sow-Thistle White Clover White Dead-Nettle Wild Carrot (seen here being visited by a Fly) viz.
Yarrow (being visited by a Hoverfly, Myathopa florea) viz.
And there were at least four Hoverflies, Syrphus ribesii viz.