Phacelia is remarkably easy to grow and suits both spring and autumn sowing. For best results, sow from March to May when the soil begins to warm, or in late summer to early autumn, ideally four to six weeks before the first frost, to allow young plants to establish before winter.
Begin by clearing the area of weeds and creating a fine, crumbly seedbed. The seeds are small, so mixing them with dry sand can help achieve an even scatter. Once sown, gently rake or press the seeds into the surface so they’re just covered, and water lightly if the weather is dry.
In most cases, Phacelia germinates quickly and gets off to a strong start. As it grows, it requires very little attention, just the occasional weeding and watering during prolonged dry spells.
Once flowering is over it works beautifully as a green manure, and can be dug in or strimmed down to enrich the soil for a following crop or wildflower mix.
For garden applications direct sow at 1g/m2. For overseeding existing meadow planting or for new sowings on larger areas sow at a maximum of 2g/m2.
