Delphinium elatum 'Blue Nile'
Bold, blue and beautiful
Grown by Jack
Hereford
Perfectly happy plants, or your money back
Specialist overnight plant delivery
The highlights
- Position in full sun for best results
- Perfect for sunny beds and borders
- Fantastic flower spires from May to July
- RHS Award of Garden Merit winner
Description
- 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:
Height on arrival:
Eventual height:
Eventual spread:
Time to first crop:
Flower colour:
Habit:
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Rootstock:
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How To Grow
Good pest and disease resistance
This plant can be targeted by slugs and snails. It may also be prone to powdery mildew and have aphid issues. For slugs and snails, it's important to keep the area around the plant free of debris and as dry as possible, especially at night - slugs and snails love damp conditions. You can use barriers (like egg shells) to surround the plant to help prevent slugs and snails from reaching the leaves. For more serious slug and snail control you can also use specific nematodes that will target the pests. To prevent downy mildew, avoid crowded and humid conditions. Properly space plants apart and get rid of any weeds. Water at the soil to prevent soil splashing from the soil onto the leaves. To combat aphids, you can pick away the bugs with your hands and also wash the infested areas down with soapy water.
Water regularly in summer
Delphiniums thrive in moist soil so make sure you water often in summer so that the soil doesn't dry out. During hot and dry spells, this could require watering every couple of days.
Full sun
Position somewhere your plant will receive at least 6-8 hours of sunlight per day.
Any moist, fertile, well-drained soil
Plant your delphinium in fertile, moist but well-drained soil. Amend your soil with organic matter to improve drainage if necessary.
Feed regularly
Feed weekly with a liquid fertiliser rich in potassium from when blooms appear to the end of August.
Planting Calendar
- Best time to plant
- Harvest
- Flower
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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Growing with Roots
Good to know
Our plants are grown in the UK
Specialist UK growers we know and trust grow your plants the traditional way, with organic fertiliser and biological pest control. They pick only the healthiest plants for you, professionally pruning them so that they’ll grow strong and well shaped.
Our plants are delivered overnight
Your plants are sent to you fresh from the field in our plastic free box that’s specially designed to hold them tight, then securely delivered by specialist plant couriers - straight from the grower to your garden within 24 hours.
We're here to help at every step
We want your plants to have a long and healthy life. Expect easy-to-follow grow guides and videos devised by our team of experts.
Perfect plants, guaranteed
We’re confident that you’ll be delighted with your new plants. Need help? Alice and her team are here to guarantee you’re perfectly happy.
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The delivery timescale for each plant is on the web page (near the 'add to basket's button). You'll receive a dispatch email with an exact delivery date once your plants are on their way, so you can get the garden ready.
How will my plants be packed and delivered?
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Where do you deliver?
We deliver to anywhere in Mainland UK for our standard delivery cost. We are able to deliver most plants to Highlands and non UK mainland however this will be at an additional cost. This will be calculated at the checkout. Please note, deliveries to these locations will take longer. Unfortunately, we are not able to deliver to Northern Ireland at present.
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