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Black Knight

Delphinium | Larkspur - Black Knight

£5.50

Plant profile · availability to be confirmed

Foliage: deciduous. Suited to full sun. Ultimate height: 1.5–2.5 m. Ultimate spread: 0.5–1 m.

A CLOSER LOOK

Plant details.

Suitability: Borders, Cottage gardens, Cut flower gardens, City and courtyard gardens
Position: Border | Back, Cutting Garden
Light: Full sun
Soil moisture: Free draining, Moist
Soil acidity: Neutral, Acid, Alkaline
Soil type: Chalk, Loam, Sandy
Hardiness: H5 [-15 to -10ºC] Hardy | Cold winter
Time to maturity: 2–5 Years
Exposure: Sheltered
Mature height: 1.5–2.5 m
Mature spread: 0.5–1 m
Foliage colour: Green
Flower colour: Blue, Purple
Growing skill: Easy
Genus: Delphinium | Larkspur
Toxicity: Harmful if eaten
Aspect: East, South, West

A year at a glance

Jun–Aug

Filled months show recorded activity. Timing can vary with climate and growing conditions; unfilled months are not recorded.

GETTING TO KNOW YOUR PLANT

Every plant grows a little differently. Your new arrival’s shape and size may vary from the photograph.

Growing conditions+

Position: Full sun. Soil: Moist but well-drained or Well-drained.

Winter hardiness+

RHS rating: H5 (UK growing conditions). See the source profile for cultivation advice.

Plant information sources+

Growing details checked against the sources below. Ultimate size depends on growing conditions.

THE GREENHOUSE JOURNAL

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