Egg Mayonnaise: Cut boiled eggs in half, lay down in a dish cut side down. Smooth over mayonnaise and sprinkle with paprika. Looks good and always gets eaten.
Hedgehog: Put anything on cocktail sticks (cheese, mini sausages, pickles etc). Stick them in half a rounded fruit (eg grapefruit) so it...
Try associating the plant names or whatever it is you need to remember with people or objects. The sillier the better. This will help you remember them.
eg Think of you dad as a 'Daisy'
Hope this helps and 'GOOD LUCK' xx