Tall Hybrid
Pacific Giants Blend Delphinium is a towering stunner from the Ranunculaceae family that brings dramatic vertical interest to any garden. These stately flowers reach 36 to 72 inches tall, creating an unmistakable presence whether planted singly or in groups. Hardy in zones 3 through 7, this cultivar thrives in full sun and rewards gardeners with magnificent spikes of blooms that seem almost architectural in their precision. The blend aspect means you'll get a mix of colors in a single planting, adding spontaneous variety without the monotony of a single hue.
18-24 inches apart
Full Sun
Moderate
3-7
72in H x ?in W
Perennial
High
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What makes Pacific Giants Blend special is its sheer scale and the visual drama it commands in a border or cutting garden. The height range of 36 to 72 inches means you're not just growing flowers, you're creating living sculpture. Unlike standard delphiniums that can feel one-note, the blend aspect ensures every plant brings surprise color combinations, making each season feel fresh even when you're returning to the same planting spot year after year.
Delphiniums like Pacific Giants Blend are prized as cut flowers, bringing that cottage garden elegance indoors where their tall spikes can be showcased in substantial arrangements. They're also invaluable for creating vertical emphasis in perennial borders, particularly where you want to draw the eye upward and add backbone to mid-border plantings.
Start seeds indoors 6 to 8 weeks before your average last frost date. Sow at a soil temperature of 60 to 70°F, keeping seeds at a depth of ¼ inch. In mild climates where delphiniums can overwinter, you can also start seeds in midsummer to transplant in fall for spring bloom.
Transplant seedlings outdoors 6 to 8 weeks after starting them indoors, which aligns with timing around your average last frost date. Space plants 24 inches apart to give them room to develop sturdy root systems and allow adequate air circulation as they mature.
You can sow seeds directly outdoors 1 to 2 weeks after your average last frost date, or as late as 2 months before your average first frost date, provided soil temperature is between 60 and 70°F.
Deadhead spent flower spikes to encourage continued blooming throughout the season. In fall, cut back plants to ground level after frost has blackened the foliage. If you're growing these as annuals or overwintering them in colder zones, this cleanup prevents disease and reduces pest habitat.
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