Light Needs
Mature Height
Mature Spread
Growing Zones
Add height and color to an outdoor space with the Delgenius™ Blue Fabulosa Delphinium. This new addition to the Delphinium Delgenius series boasts 6-petaled flowers in a rich indigo-blue shade and crisp white eyes. Each tall stalk is covered with blooms for an impressive display. The summertime flowers bloom from June through August for dependable color. The tall flower spikes emerge from a bed of frilly green foliage.
This Delphinium has an upright, well-branched structure and is low maintenance for added convenience. Feature the Delgenius™ Blue Fabulosa Delphinium near the middle or back of a mixed bed, plant several to create a stunning mass planting, or add height to a container. The tall flower spires make excellent cut flowers. The blooms also support pollinators, including butterflies and hummingbirds, but the plant is deer resistant. The Delgenius™ Blue Fabulosa Delphinium grows in zones 3 through 9.
Delgenius™ Blue Fabulosa Delphinium Care
This Delphinium needs full sun, and a spot that receives at least 6 hours of sunlight is ideal. Rich, moist, well-drained soil that is slightly acidic supports growth. Water consistently, especially during a dry spell. Fertilize Delphinium using a balanced plant food when planting and again at midsummer.
Deadhead the plant by removing stalks after the flowers fade. Removing spent flowers encourages reblooming. Trim the growth to ground level after the first frost.
Delgenius™ Blue Fabulosa Delphinium Spacing
The tall flower spikes of the Delgenius™ Blue Fabulosa Delphinium stand 18 to 24 inches, and the plant spreads just as wide. Space each Delphinium 1 to 3 feet apart to allow the plants room to grow but still create a continuous planting.
Delgenius™ Blue Fabulosa Delphinium Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 3 to 9 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 1-2 Feet
- Mature Spread
- 1-2 Feet
- Growth Habit
- , Upright
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Blue, Purple, White
- Flower Description
- Blue, Purple, White
- Bloom Time
- Summer
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Spring Flowering, Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Delgenius Blue Fabulosa Delphinium
- Also Known As
- Larkspur
- Botanical Name
- Delphinium Delgenius™ 'Blue Fabulosa'
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!