Phacelia
Phacelia: Sowing, planting and harvest calendar
Lacy phacelia, Phacelia tanacetifolia, is a herbaceous annual in the Boraginaceae family. Native to the southwestern United States and northwestern Mexico, it is known in gardens for blue-violet flowers and its use as a cover crop or green manure. The alternative name tansy-leaf phacelia refers to the divided appearance of its foliage. It does not mean that the plant belongs to the tansy genus or shares all the characteristics of that plant.The finely divided foliage sometimes suggests the outline of a fern. Upright, branching stems form a soft-looking mass of vegetation whose height depends on growing conditions. Flowers are gathered in curved clusters that unfold progressively. This arrangement allows buds, open flowers and more advanced parts to appear on one plant at the same time. The display is therefore a developing sequence rather than every flower opening uniformly at once.The small blue, lavender or violet flowers create a light effect…
