Cornflower, Bachelor’s Button
Out of some 500 species, only a dozen or so are widely cultivated. Of these, annuals are grown mainly for cut flowers; perennial kinds are valued for soft, silvery foliage. All are relatively easy to grow. For best performance, add lime to acid soils. Sow seeds of annuals or set out plants of perennial kinds in spring or fall. (In desert regions, plant all in autumn for winter and spring bloom.)Centaurea cyanus
Bachelor's Button, or cornflower, is a pretty blue flower from northern temperate regions. A common but often welcome weed in some areas, such as the Pacific Northwest. Grows 1 to 1 1/2 ft. tall, less than a foot wide, branching if given enough space. Narrow gray-green leaves, 2–3 in. long. Spring to midsummer flowers are 1 1/2 in. across, in blue, pink, rose, wine red, or white; blue varieties are traditional favorites for boutonnieres.
Stiffly branching plants to 2 ft. tall, 1 ft. wide, covered in summer and fall with rounded, papery, c...
This form of celery is grown for its large, rounded, edible roots rather than for leafstalks; this is ...
Wild species (for which seed is available) grows 2 to 4 ft. tall (possibly to 6 ft. under ideal condit...