Hi, does anyone know of a plant(s) that could tolerate growing on a beach where at the highest tide the plant would be underwater? I noticed that ribwort plantain, Plantago lancelata can thrive, wondered if anything else could?
I have no idea as I'm not lucky enough to live by the sea. The RHS has some advice on plants suitable for seaside gardens and burncoose nurseries also have a piece on it ( v good in dependant nursery)
The beaches around here have Sea pea (lathyrus japonicus) and Sea kale (crambe maritima) , but both of these only grow above the high water mark and can cope with the occasional soaking, not twice a day.
Other plants that can grow on salty fringes are sea purslane (sesuvium portulacastrum) and marsh samphire (salicornia) both of which are edible, and sea lavender (limonium) aka statice which does have attractive flowers, and of course there are some grasses which can cope with salty conditions - Spartina is one that I'm aware of.