Skip to the content
SELECT SEEDS

We're getting ready for the new year!

We have been busy packing our favorite flower seeds and gearing up for another amazing year. Stay tuned for back in stock seeds and plants for 2025 plus over 75 new varieties!
Delphinium requienii
Seed Packet

Delphinium requienii

Delphinium requienii
This rare Delphinium makes its presence known in the garden with tall flower wands clothed in smoky-blue vestments arising from a rosette of glossy deepest green leaves. A biennial that blooms the first year from early sowings, a big plus for northern gardeners.
SKU #S1688
Caution: Poisonous. The purchaser assumes all liability related to the use of this product.
$5.00
Growing Companions
Larkspur 'Misty Lavender'
Larkspur 'Misty Lavender'
Phlox 'Isabellina'
Phlox 'Isabellina'
Three Bird's Flying
Three Bird's Flying
Lady's Mantle 'Thriller' - S1
Lady's Mantle 'Thriller'
Details
Approximate Seeds Per Packet
22
Lifecycle
Biennial
Perennial Hardiness Zone
7,
8,
9
Mature Size
3-5' h x 1-2' w
Sun
Full sun
Soil
Rich, well-drained
Season
Summer to fall
Color
Smoky lavender-blue
Features
Great Cut Flower
Deer Resistant
Attracts Butterflies
Attracts Bees
Attracts Hummingbirds
SOWING INSTRUCTIONS
Depth:
1/8"; darkness needed for best germination.
Sprout Time:
10-30 days
Starting Indoors:
Recommended. Start 8-10 weeks before planting out. Sterile germinating mix with vermiculite is the preferred growing medium to prevent fungal problems. Keep at about 65-70°F.
Starting Outdoors:
Direct sow in mid to late summer in areas where hardy, zones 7-9.
WHEN TO SET OUTSIDE
In spring, after frost
PLACEMENT & CULTIVATION
A rare delphinium that entered the lexicon of horticultural discoveries in 1805 when collected and described by an eminent Swiss botanist of the era. It hails from the Mediterranean region and thrives in sunny areas and well-drained, even gravelly soils. It is a biennial that can be grown as an annual in areas where it is not hardy if started indoors early. After bloom, allow it to self-sow to renew plantings.
Final Spacing:
1-1.5'
Water Requirements:
Medium Water Use
Watering Details:
Water regularly until established and during dry periods, but avoid saturated soils.
Soil pH:
Slightly acidic to slightly alkaline; if soil is very acidic, add lime before planting.
Fertilizer:
Mix in 2-4" of compost prior to planting.
Diseases & Pests:
Prevent fungal problems buy planting in a location that has good air circulation and well-drained soil.
When to Cut for Bouquets:
Harvest when 1/2 of the florets are open.