Pond Plant Species

These are the plants I am starting with in the pond. There are probably too many as I was unable to find out how many you should put in a given area. I do expect some to die off, but those that remain will be the ones best suited to this habitat. 
The non-native water clover is not hardy and won't survive the winter, it was bought locally, along with the hard hornwort, simply to get something oxygenating into the pond while I got the rest of the plants ordered.
The non-native water hawthorn was, like the Callicarpa in my hedge, a single concession to something pretty over a native origin.
The planting depths are approximate and some pots will be raised slightly on stones.
I highly recommend Lilies Water Garden, Puddleplants and Mimmack Aquatics for buying plants online

Dry plants for pond edging

2x Mentha requenii

2x Lindernia grandiflora

2x Hypsela reniformis

Trifolium - Green Ice          

Trifolium repens - Dragons Blood

Bog plants

Marsh marigold  -Caltha palustris

2x Common cotton grass - Eriophorum angustifolium

2x Fleabane - Pulicaria dysenterica

2x Common arrowhead - Sagittaria sagittifolia

10 - 20cm

3x Willow Moss - Fontinalis

3x Water crowfoot - Ranunculus aquatilis

2x Brooklime - Veronica becabunga

Water mint - Mentha aquatica

Iris versicolor (blue)          

Yellow flag - Iris pseudacorus

25 - 50cm

2x Pond clover - Marsilea quadrifolia  (non-native - now gone)  

Flowering rush - Butomus umbellatus

Water violet - Hottonia palustris

Deep water

Amphibious bistort - Persicaria amphibian

Water Hawthorn - Aponogeton distachyos  (non-native)

Floating

2x hard Hornwort - Caratophyllum dermersum 

Soft hornwort - Ceratophyllum submersum       

2x Water soldier - Stratiotes aloides

2x Frogbit - Hydrocharis morsus-ranae   (my favouritest pond plant)

June 2103

In later summer 2013

I added some water lettuce (Pistia stratiotes)  for extra interest. These aren't native and they aren't hardy. By spring of 2014 they have just hung on long enough in a tank of rainwater in my conservatory to start growing again, but they are tiny. They will probably survive in my pond when I return them so long as they don't immediately get eaten!

May 2104
In the interest of having more emergent plants that may be of interest to amphibians I planted a miniature bulrush (Typha minima) as a regular one would be much too big. I believe this is a Japanese plant originally

July 2014
Although the Water Lettuce did survive the winter in the tank, I decided not to return it to the pond as there was more than enough plant cover, in fact I've been hauling plenty out (along with the wretched blanket weed). An abundance of snails and Dragonfly larvae have been carefully picked out and put back in