Most plants have at least one characteristic which sets them apart from the specimens which surround them – with Phacelia it is the intense blue colour of its. The 1 in. upturned bells appear in midsummer above the greyish foliage, the bright yellow stamens clearly standing out against the gentian-coloured petals. Plant Phacelia as an edging or in the rockery.
VARIETIES: The favourite type is P. campanularia which grows about 9 in. high. There is a taller hybrid (P. ‘Blue Bonnet’) which grows twice as tall and has the same bright blue. Other species of Phacelia are available (P. viscida, P. tanacetifolia) but these tall types have lost the true blue effect.
SITE AND SOIL: Any well-drained garden soil, but light land is preferred. Thrives in sun or light shade.
PLANT DETAILS: Height 9 in.-2 ft.
Spacing: 6 in.-1 ft.
Flowering period: June-September.
PROPAGATION: Sowin April where they are to flower. Thin to required spacing.