Delphinium 'Black Knight' 9cm
Delphinium 'Black Knight' 9cm
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Delphinium 'Black Knight' 9cm
Delphinium 'Black Knight' renowned for its dramatic, deep-purple flower spikes that soar to impressive heights in the garden. This perennial beauty showcases densely packed, semi-double blooms with a velvety texture, creating a captivating contrast against the backdrop of lush, green foliage. 'Black Knight' stands tall and stately, making it a stunning focal point in borders, cottage gardens, or as a cut flower for striking floral arrangements. With its vigorous growth habit and sturdy stems, this variety is a favourite among gardeners seeking to add vertical interest and rich, dark hues to their landscape. While 'Black Knight' requires consistent moisture and protection from strong winds, the breathtaking beauty it brings to the garden makes it a worthy addition to any landscape design.
We want you to love your new plant from the moment it arrives. That’s why we offer a 30-day guarantee — if your plant doesn’t arrive in fresh, healthy condition, we’ll replace it free of charge. Simple as that.
12-Month Peace of Mind Guarantee
For added reassurance, we also offer a 12-month guarantee. If your plant’s health noticeably declines after the first 30 days, you can purchase a replacement of the same plant at 50% off.
Orders are typically dispatched and delivered within 2–5 working days.
Live plants spend no longer than 24–48 hours in transit.
All orders are shipped via tracked services with Royal Mail, Parcelforce, or DPD.
One delivery charge covers your entire order, no matter how many items you purchase.
Next Day or Named Day Delivery
Available for an additional £4.99 (weekdays) or £6.99 (weekends).
Place your order by 5 PM for next working day delivery.
Delivered via tracked 24-hour/next-day courier service.
Choose your preferred delivery date at checkout.
Delivery Coverage We deliver across most of the United Kingdom, excluding Northern Ireland and the following postcodes: IV, AB, HS, FK, KW, PA, PH, IM, JE, GY, ZE, TR21-25, and BF1.
Free & Fast Shipping
Returns & RefundsIf you need to return a living plant, please contact us within 60 days at hello@plants-express.com or via live chat (when available).
Kindly include a photo of the faulty or damaged plant to help us process your return swiftly.
Non-living items can also be returned for a full refund within 60 days, provided they are unused and in their original, resaleable condition.