Scilla (blue squills)
Scillas grow in most situations in sun or shade. The ideal soil would be fertile, moist but well-drained. The bulbs are suitable for naturalizing beneath light trees, under hedges, in the rockery or in the wild garden. Blue Squill self-sows with abandon: if left undisturbed, a handful of bulbs will over time form a thick, brilliant blue carpet in early spring. Little fertilization is needed but a mulch of leaf-mould or well-rotted manure applied in autumn once every two years will be beneficial. Blue Squills are probably the best companion to any Daffodil planting. Plant 8cm deep, 8cm apart.