delphinium elatum 'Guardian Blue' ~ Guardian Blue Delphinium-ServeScape
delphinium elatum 'Guardian Blue' ~ Guardian Blue Delphinium-ServeScape
delphinium elatum 'Guardian Blue' ~ Guardian Blue Delphinium-ServeScape

Delphinium elatum 'Guardian Blue'

Guardian Blue Delphinium

Regular price$58.05
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Size

Gaudian Blue Delphinium is a clumping perennials with palmate basal leaves that are 5-7 parted and leaf stems 3-5 parted.  Upright flower spikes densely packed with intensely double purple-blue that bloom in summer.  Blooms best with afternoon shade in Southern climates and rich, moist, and slightly alkaline well-drained soil.  Toxic if ingested.

Type: 

Perennial

Height: 

2.5' - 3.5’

Spread: 

1.5’ - 2’

Spacing: 

2’

USDA Hardiness Zone: 

4 - 7

Culture: 

Full Sun, Part Sun

Bloom Color: 

Blue

Season of Interest: 

SummerFall

MAINTENANCE NEEDS:  Medium Maintenance.  Water regularly.  Deadhead to extend bloom.  Susceptible to powdery mildew, blight, crown rot, and leaf spot.  Watch for miners, borers, mites, and aphids.  Slugs and snails can do considerable damage.  Crown rot is inevitable if planted to deep or in poorly drained soils.  Water at base and avoid wetting foliage to lessen chance of powdery mildew.

LANDSCAPE USES:  Accents or Group Plantings, BordersWoodland GardenRock GardensFoundational Plantings, and Containers.

COMPANION PLANTS: PhloxSpeedwellConeflower

*As plants have ranges in appearance they may not appear as the images shown.

Size Chart

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Founder, CEO

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