Olive Seed Company
Delphinium 'Cliveden Beauty'
Delphinium 'Cliveden Beauty'
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The hardiest delphinium and a first-year flowering perennial. Well-branched plants produce tall, elegant spikes of soft sky blue blooms with a white bee—making this variety a true standout in the garden or bouquet. A classic cottage garden flower with timeless charm.
Loved for its popular colour and airy, delicate appearance in floral design. Tall plants may benefit from support, as stems can lodge or topple in wind or heavy rain. Attracts bees and butterflies.
Often grown as an annual. Short-lived perennial in Zones 3–7.
DETAILS:
QTY: 30
TYPE: Short Lived Perennial (zones 3-7)
DEPTH: 1/4"
SITE: Sun/Part Shade
GERMINATION: 10-20 days at 18-21°C
HEIGHT: Varies
MATURITY: 130 - 135 Days
SPACING: 12-18" if being grown as a perennial. 12" apart if being grown as an annual
PINCH: Yes 6 - 8"
How to Grow:
Transplant (recommended): Sow 10–16 weeks before planting out. Lightly cover seeds, as they require darkness to germinate. Transplant into larger cell packs or 3–4" containers 6–8 weeks after germination. Grow seedlings at 18–21°C in a greenhouse or cold frame.
Harden off and transplant outdoors after the last frost. Support is strongly advised—use horizontal trellising (such as Hortonova) positioned 12–18" above the beds. In heated structures, maintain temperatures below 16°C to prevent legginess. Feed regularly with a balanced fertilizer.
Direct seeding is not recommended.
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