Delphinium elatum 'Blue Nile'
Bold, blue and beautiful
Grown by Jack
Hereford
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Currently out of stock
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Plant diary
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Delphinium elatum 'Blue Nile'
- A truly wonderful delphinium variety, featuring semi-double flower spikes in cornflower blue, each with a greyish-white centre (or 'bee')
- Blooming throughout summer, 'Blue Nile' features clumps of lush, green foliage from which its tall, striking flower spires proudly emerge
- Plant en masse at the back of a perennial border, or use as a key plant in a quaint cottage garden planting scheme
- Fully hardy and attractive to pollinators like bees and butterflies, this really is a great addition to any garden
- Want another planting idea? Pair this variety with other delphiniums in pastel pink, white and purple shades for a dedicated display of flower towers
- A recipient of the RHS Award of Garden Merit, this indicates just how well the variety performs in British gardens
What to expect
Supplied as
Eventual height
Eventual spread
Flower colour
Habit
Hardiness
Spacing
Will this grow in my garden?
Can I grow this in a pot?
Yes, Delphinium 'Blue Nile' can be cultivated in a deep 50 cm pot, performing best in cooler temperatures around 20°C.
How big does it get?
Delphinium elatum 'Blue Nile' typically reaches a mature height of 150 cm and a spread of 60 cm.
How much sunlight does this need?
Delphinium elatum 'Blue Nile' requires full sun to flourish.
What kind of soil does this plant prefer?
Delphinium elatum 'Blue Nile' prefers deep, fertile, moist but well-drained soil enriched with organic matter.
How much watering does this plant need?
Water Delphinium elatum 'Blue Nile' regularly to keep the soil evenly moist, providing about 2.5 cm of water weekly during the growing season, and slightly more when temperatures surpass 25°C.
Will this plant need pruning?
No strict pruning is required, but Delphinium elatum 'Blue Nile' generally benefits from deadheading faded flowers to encourage further blooming and cutting back dead foliage in late autumn or early spring.
How hardy is this plant?
Delphinium elatum 'Blue Nile' holds an RHS rating of H5, withstanding temperatures down to -15°C, making it hardy in most places throughout the UK even in severe winters.
The wider garden
Hereford
Meet Jack
Perennials born in Herefordshire, blooming in your garden
Our perennials start life in the rolling Herefordshire hills, where Jack and his team trial over 250 new varieties each year to bring you the best performing and most sustainable plants in the UK. With over forty years of excellence, it’s no surprise that they’ve won the HTA Plant Grower of the Year award two years running.
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