Delphinium 'Black Knight' - 9cm Pot

Delphinium 'Black Knight'

An elegant 'Black Knight' selection, a hardy garden plant growing to around 60cm, with deeply coloured attractive seasonal foliage and dark flowers or garden interest, a fine choice for borders, containers and mixed planting.

Deciduous

£6.99

Select Quantity

Mature Height

1-2m

Flowering

JUN,JUL

Attracts Wildlife

Bees Butterflies Beneficial Insects

Ideal For

Borders Containers Patio Cut Flowers

Plant Description

Delphinium 'Black Knight' is a reliable herbaceous perennial, with purple flowers in summer and purple deciduous foliage. This Delphinium is an excellent choice for borders, containers, patio, cut flowers, where it brings colour, texture and seasonal interest. It performs best in full sun and rewards the right position with reliable garden performance.

Delphinium 'Black Knight' is straightforward to grow with routine care and suits a wide range of garden styles. Reaching around 1.5m at maturity, it is suitable for outdoor growing in most UK gardens and works well in borders, containers or mixed planting schemes. Supplied in a 9cm Pot, this size offers a practical starting point for planting out, patio displays or growing on at home.

Planting & Aftercare

Choose a pot with drainage holes slightly larger than the nursery pot. Use well-draining potting mix. Place the plant at the same depth it was in the original pot. Water thoroughly after planting.

Water when the top 2-3cm of soil feels dry. In spring and summer, this is typically once a week. Reduce watering in autumn and winter. Always check the soil before watering to avoid overwatering.

Overwatering is the most common issue. Avoid placing in direct sunlight which can scorch leaves. Don't repot too frequently - most plants prefer to be slightly root-bound. Ensure good drainage to prevent root rot.

Feed with a balanced liquid fertiliser every 2-4 weeks during the growing season (spring to early autumn). Reduce or stop feeding in winter when growth naturally slows.

simply plants always supplies high-quality plants, but we know that sometimes plants have a mind of their own. That's why our 12 Month Plant Guarantee comes as standard.

It's our promise to you: if any plants fail within 12 months, we'll replace them or offer a suitable alternative.