Up for sale is one pack of 50 Belladonna Mixed Color Delphinium flower seeds. Perfect for late spring/ summer blooms these delphinium create airy flowers on 36"-48" stems. One of our favorite delphiniums as the light and airy flowers don't require support like other heavier flowering delphinium such as larkspur.
We offer flat rate combined shipping on all orders, no limit on the amount or type of seed packets.
Soil temperature: 65 - 70 degrees fahrenheit
Germination lighting: Light required
Germination days: 10 -20 days
Plant spread: 12"
Plant height: 36-48"''
Plant type: Tender Annual
Maturation days: 60 days
Belladonna Delphinium is suitable for zones 3-7 and is a tender perennial usually lasting only three years.
When starting in pots Delphinium will germinate at a much higher rate if you cold treat the seeds. When cold treating mix your packet of seeds with 1/4 cup of moist sand and store inside a baggie in your refrigerator (not freezer) for 30 days and then sow.
These delphinium require light to germinate so sow on the surface on your pot and lightly dust with vermiculite or sand. These are slow growing and while they will flower slightly in their first year they flower profusely in years 2-3 throughout the spring and summer.
We find that here in hot and humid zone 7 it helps to lift them in late fall of year two, re work your garden bed, and then replant them. After year three they will stop flowering and eventually die off.
All spikey flowers, such as foxglove and delphinium, are slightly toxic. Some, such as foxglove, do become more potent right before the flowers go to seed. This is a natural defense mechanism to keep deer and rabbits from eating them, but care should be taken around small children or pets who might eat a large quantity of flowers from your garden.