Delphinium
Black Knight
“The definitive English cottage garden spike. Dramatic, tall, and that violet-blue is impossible to replicate with any other flower.”
— ROSIE
Rosie's Take
There's a particular shade of blue that only delphiniums seem to manage — that deep, saturated violet that looks almost painted. 'Black Knight' is the one I always come back to, the darkest of the tall hybrids, with spires that can reach well above my head by midsummer.
I grow a few at the back of my border and they're absurdly dramatic. That deep indigo against a pale sky in July — it's the kind of thing you stop walking for. They need staking, and they're a bit fussy about wind, but that's part of the deal with anything this tall and this beautiful.
As a cut flower, they're extraordinary. A single spike in a tall glass vessel is about as close to a statement as a flower can make without trying. They last reasonably well if you condition them properly — a good drink of warm water and keep them out of direct sun.
I pair them with garden roses and snapdragons for something romantic, or with ammi and grasses for something wilder. Either way, they anchor the whole arrangement. There's a reason English cottage gardens have relied on delphiniums for generations — some things are classics because they've earned it.
Where to Buy
If you want to try delphinium for yourself, here's where I'd point you:
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✿ From the folklore cabinet
Medieval herbalists believed delphiniums could ward off scorpions, which is probably more useful than you'd think if you lived in thirteenth-century Provence. The name comes from the Greek 'delphis' — dolphin — because someone thought the flower buds looked like a dolphin's nose. I can see it, just about.
