For gardeners seeking to create a cool and understated planting scheme, true blue flowers will certainly help to create a calming atmosphere. In addition, for those considering flower bed ideas ...

When growing alliums, many cultivars are marketed toward growers looking for true-blue flowers, but colors may vary. Most plants of this type open to reveal a range of blue-purple tones.

purples and blacks that appear in flowers. Over the past few years, that research has led Puglieri to a remarkable discovery: a human-made dark blue colorant — the shade is almost black — used by the ...