Delgenius™ Kingsley Delphinium
Delphinium x 'Kingsley' PP34,675
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Delgenius™ Kingsley Delphinium - #1 Container is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Delivery and Shipping
Fast, Safe Plant Delivery
Ships in 3-4 business days • Tracking provided • Weather protected
Under $50 | $9.99 |
$50 - $99.99 | $14.99 |
$100 - $149.99 | $16.99 |
$150+ | $24.99 |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
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2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Delgenius™ Kingsley Delphinium highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateMedium
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Flower Color
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Pollinator Friendly
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Pruning Time
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Bloom PeriodLate Spring, Summer

Growing Zones
Proven Winners® Delgenius™ Kingsley Delphinium
The Delgenius™ Kingsley Delphinium PP#34657 (Delphinium 'Delgenius Kingsley') is a spectacular perennial known for its massive spikes of soft lavender-blue blooms and reliable reblooming performance. Bred for both beauty and durability, this prolific bloomer stands out with its large, densely packed flowers that continue blooming from early summer through fall.
Backed by a frilly mound of deeply lobed leaves, the strong flowering stalks rise tall! Unlike traditional Delphiniums, Kingsley combines cold hardiness, heat tolerance, and exceptional branching, making it a gardener's dream for long-lasting color in borders, cottage gardens, and pollinator-friendly spaces.
>>Jump to Planting & Care Instructions
Key Features of Delgenius™ Kingsley Delphinium
- Gorgeous lavender-blue double blooms with full, densely packed flower spikes.
- Extra-long bloom period from early summer through fall.
- Highly branched habit for maximum flower production.
- Cold hardy and heat tolerant, making it more adaptable than traditional Delphiniums.
- Compact and sturdy, no staking required.
- Attracts butterflies and pollinators but is resistant to deer and rabbits.
- Grows up to 2 feet tall with a spread of 16-20 inches, perfect for small or large gardens.
- Great for cut flower arrangements with long-lasting blooms.
- Part of the Delgenius™ series, known for superior branching and reblooming ability.
How to Use Delgenius™ Kingsley Delphinium in the Landscape
Cottage Gardens & Mixed Borders
Plant Delgenius™ Kingsley in mixed perennial borders to create vertical interest and texture.
Pair with Roses, Daisies, and Salvia for a classic cottage garden look.
Use in mass plantings for a bold, colorful display throughout the growing season.
Pollinator-Friendly Gardens
Attract butterflies and bees with Kingsley's nectar-rich blooms.
Include in pollinator gardens as a mid-height anchor plant.
Containers & Patio Gardens
Its compact growth habit makes it ideal for large containers.
Place on patios and decks for up-close enjoyment of the blooms.
Cut Flower Gardens
Kingsley's tall, sturdy flower spikes are perfect for fresh bouquets.
Cut back after the first bloom to encourage additional flowering.
Delphinium Care & Maintenance
Delphinium are very easy to grow and hardy perennial plants!
Sun & Soil Requirements
Full sun to partial shade—plants bloom best with at least 6 hours of sunlight a day.
Prefers a rich, well-drained soil with consistent moisture.
Watering & Mulching
Keep soil evenly moist, especially during hot, dry periods.
Apply a 3-4 inch layer of mulch around the base to retain moisture and regulate temperature.
Fertilizing
Feed with a balanced, slow-release fertilizer in early spring and again after the first bloom to encourage continuous flowering.
Pruning & Deadheading
Deadhead spent blooms to promote reblooming.
After the first flush, cut back flower stalks to encourage a second bloom later in the season.
Winter Care
Delgenius™ Kingsley is a cold hardy perennial!
Apply mulch in late fall to protect the root zone during harsh winters.
Order Delgenius™ Kingsley Delphinium Today!
Bring continuous color and vertical beauty to your garden with the Proven Winners® Delgenius™ Kingsley Delphinium. Its long bloom season, compact habit, and superior adaptability make it a must-have perennial for any landscape.
Order now from Nature Hills Online Plant Nursery, and enjoy season-long blooms and reliable performance in your garden for years to come!
Frequently Asked Questions About Delgenius™ Kingsley Delphinium
How tall does Delgenius™ Kingsley Delphinium grow?
Kingsley grows around 2 feet tall and wide, making it perfect for back and mid-border accents.
When does Delgenius™ Kingsley bloom?
It blooms from early summer through fall, with a second bloom cycle after deadheading.
Is Delgenius™ Kingsley deer-resistant?
Yes! Delgenius™ Kingsley is resistant to deer and rabbits, making it a great choice for gardens with wildlife pressure.
Can Delgenius™ Kingsley be grown in containers?
Absolutely! Its compact habit and sturdy stems make it ideal for large containers on patios and decks.
How do I promote continuous blooming?
Deadhead spent blooms and cut back flower stalks after the first bloom to encourage a second flush of flowers.
Is Delgenius™ Kingsley drought-tolerant?
While it prefers consistent moisture, it is more heat and drought-tolerant than traditional Delphiniums once established.