Usually requires support.
Divide large clumps in the autumn after flowering
Try to plant in a location that enjoys
partial sun and remember to
water moderately. Keep in mind when planting that Blauer Sommer is thought of as
hardy, so this plant will survive close to or on freezing temperatures.
Can divide large clumps after flowering
By our calculations, you should look at sowing Blauer Sommer about 63 days before your last frost date.
Grows in most soils in sun or part shade
Best towards the front in a mixed cottage style border
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Blauer Sommer is a hardy plant.