These Poppies have made themselves at home in the unpromising setting of a main road and adjoining  car park. There is a lot of interest these days in gardening with wildflowers and planting urban meadows. In fact wild plants are apt to poke through every crack and crevice in towns and cities and readily colonise any patch of neglected ground. They are frequently discouraged from doing so because they are considered to be weeds.   

 "Meadow mixes" of wildflower seed are easily purchased but the results are often disappointing. The word "meadow" is generic; meadows are invariably niche environments. For example a chalk hillside in Wiltshire grazed by sheep or a peat floodplain in Devon grazed by cattle will have very different flora.

 Scattering a generic mix of seeds is unlikely to recreate an ancient flower meadow. A few might take to the surroundings, most will probably not. It is worth trying species that may suit a particular locale (taking into account factors like sun/shade, soil type and so forth) but even then the success rate is likely to be hit and miss.   

 Fortunately plants are very adept at finding spots that suit them as with these Poppies. Nature gardens with wildflowers and creates urban meadows- as long as we don't mistake them for weeds.