Grow in fertile, well-drained soil in full sun to light shade, with shelter from strong winds. Plant in the spring. Prepare the soil, mixing in 2 to 4 inches of compost.
Delphinium is a genus consisting of over 300 species—some are annuals, others are biennials or perennials. Some grow easily from seed, others don’t.
Dig a hole twice the diameter of the plant’s container. When planting, ensure that the top of the root ball is level with the soil.
In the spring, broadcast lime, wood ashes, or a mixture of the two over this alkaline-loving perennial.