Delphinium 'Delgenius Shelby' reinvents this classic tall perennial by introducing exceptional sturdiness and outstanding branching. Its dense flower spikes bear a profusion of semi-double flowers in a soft lavender-pink, enhanced by a contrasting white bee. Its compact silhouette eliminates the need for staking, allowing this variety to stand proudly in borders from early to midsummer.
Characteristics
Foliage : Deeply lobed and finely chiseled leaves display a rich dark green shade, forming a vigorous, stocky, and extremely dense basal rosette.
Blooming / Fruiting / Stems : Multiple sturdy flower stems carry compact, generous spikes packed with pastel lavender-pink semi-double flowers from June to July.
Light : Requires a full sun location to maximize flower production and ensure the perfect rigidity of its habit.
Habit : Presents an erect, compact, vigorously branched, and exceptionally stable silhouette.
Growth : Rapid growth allows it to reach a height of 60 to 75 cm and a spread of 45 to 60 cm at maturity.
Soil : Thrives in rich, loose, fresh, and adéquately drained soil.
Temperature : Exhibits excellent hardiness and easily tolerates zone 3 winters.
Resistances : Offers superior resistance to powdery mildew compared to older varieties and naturally repels White-tailed deer as well as hares and rabbits.
Use
Types of use : Structures the midground or background of mixed flower beds, animates perennial borders, and integrates beautifully into large containers on the patio. Its solid stems provide excellent, long-lasting cut flowers for bouquets.
Decorative advantages : Creates a massive visual impact thanks to its multitude of simultaneous flower stalks, while bringing a touch of softness with its pastel coloring and staking-free verticality.
Maintenance
Watering : Maintain the soil uniformly moist, particularly during hot summer spells. Water directly at the base of the plant to avoid wetting the foliage.
Fertilization : Incorporate a good amount of compost at planting. Apply a granular perennial fertilizer in early spring to support its generous bloom.
Pruning : Cut back flower stalks as soon as they fade to stimulate new growth and encourage a second bloom later in the season.
Planting : Install the plant in spring, respecting a spacing of 50 cm, and ensure you keep the crown at ground level.
Winter protection : Let accumulated snow serve as a natural insulator. Spread an organic mulch in autumn to protect the crown from freeze-thaw cycles.
Osez créer des associations inédites qui sauront refléter votre personnalité, même si pour cela vous deviez déplacer certaines vivaces pour mieux les mettre en valeur.
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