Delphinium exaltatum (Tall Larkspur) [20 Seeds]


Germination Information: I recommend these seeds only for gardeners who have experience with seeds that may require a chilling period. The easiest approach is to sow them about 1/8 inch deep in a pot in fall to early winter, setting them outdoors so they can get a natural chilling period and then germinate when conditions are right in spring. If you sow after December, give the pot an artificial chilling period of about 2 months.

Note that this information will not appear on the seed packet you receive.

Please read the description as well before ordering.

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To be honest, tall larkspur (Delphinium exaltatum) is no substitute for the dramatic, towering spires of hybrid delphiniums. But if you’re looking for an elegant and dependable perennial for your mid- to late summer garden, this native species is definitely worth considering. Tall larkspur usually reaches 4 to 5 feet in height (maybe 6 once well established) and typically flowers in a range of purple-blue tints and shades in mid- to late summer: in perfect time to pair with rattlesnake master (Eryngium yuccifolium) and cardinal flower (Lobelia cardinalis), among other perennials. These seeds may also produce some pinkish flowered plants, as you can see in the photos here. Bees and hummingbirds are frequent visitors to the spurred blossoms. Like common garden delphiniums, this species is toxic to people and animals if eaten. Native to parts of the north-central and eastern US. Full sun to partial shade; average to moist but well-drained soil. Perennial; Zones 4  to 7 (maybe 8 with afternoon shade).

Collected in August 2023. At least 20 seeds. Unknown ecotype. Shipping to US addresses only.

Please read the germination information as well before ordering.

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