I planted a pack of mixed color English daises in late winter, they are now blooming in the garden. Some are single, some semi double and in shades of white and pink. There is one plant in particular I would like to save the seed from, its a deeper shade of pink than most, more double than the others too. First of all, how and when do I collect the seed from this plant? And, will the seed be the same as the parent plant, or is there cross pollinating going on with the others, so perhaps the seed won't be identical to the parent ?