Delphinium (Larkspur) Seeds

Larkspur is a member of the Delphinium family, and its tall, upright habit makes it a good choice to plant beside a shed, along a fence line, or as an absolute necessity in a cottage garden. There is such an old-fashioned, quaint quality to this flower that we are sure you will be compelled to fill every book with its pressed petals! Give your Delphinium seeds average, well-drained soil and full sun and these charmers will grace your garden with that honest goodness of days gone by.

About our delphinium seeds

  • 29 delphinium seed varieties
  • Provides an excellent spread of color
  • Superb choice for cut flowers and dried flower arrangements
  • Prefers full sun exposure

About our delphinium seeds

  • 29 delphinium seed varieties
  • Provides an excellent spread of color
  • Superb choice for cut flowers and dried flower arrangements
  • Prefers full sun exposure

The top benefits of delphinium

Believe it or not, the delphinium name was actually inspired by sea creatures! It derives from an Ancient Greek word meaning "dolphin." It is said that this name was inspired by the shape of flowers, as they curve toward the sky. Various color choices are available, including purple, pink, and bright white. These tall wonders make excellent border plantings, as well as cut flowers. Imagine them reaching up high in the back of a vase with other smaller accents in front. Many gardeners like to dry them for dried flower arrangements as well. However you choose to display them, delphiniums are an absolutely incredible showcase of Mother Nature's splendor.

An annual plant, delphinium (also called larkspur) has become quite popular through the years for those seeking a "cottage garden" look in their yards. The leaves are deeply lobed, with the main flowering system growing erect and up to two meters tall in large meadowland species. Delphinium flowers are symmetrical and contain many stamens. In the majority of species, petallike sepals grow together to form hollow pockets that contain spurs at the end. Thus, the name larkspur.

The Best time and place to plant delphinium

Plant delphinium in the fall or spring, early in the season. Look for an area that receives full sun to partial shade, and with average soil. Being as delphinium does not like to be transplanted, it is best to direct sow the seeds in to the garden once all danger of frost has passed. Space the seeds four inches apart and then lightly cover the seeds with 1/8th an inch of soil. After germination, thin the seedlings to 10 to 12 inches apart. Ensure the soil is moist to increase delphinium's growth.

Caring for delphinium plants

During dry periods, water delphinium once or twice a week. Use a general purpose fertilizer once a month until after the flowers have bloomed. If the stalks begin to bend due to their weigh, staking can be employed. Delphinium are highly vulnerable to frost, mildew, and fungal disease, Be sure to monitor your plants and protect them from the aforementioned problems.

Delphinium is considered to be toxic to humans and animals, most notably cattle. Exercise caution when handling and growing.

For more information about planting, growing, and caring for delphinium seeds, see the Delphinium Seeds Planting Guide.