Common yarrow 'Excel'

Try to plant in a location that enjoys full sun and remember to apply water fairly sparingly. Keep in mind when planting that Excel is thought of as hardy, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).

Aim to sow 0.25 inches (0.635 cm) deep and try to ensure a gap of at least 11.9 inches (30.5 cm). Soil temperature should be kept higher than 18°C / 64°F to ensure good germination.

By our calculations, you should look at sowing Excel about 49 days before your last frost date.

As Excel is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.