Delphinium Plants
Delphiniums are the cottage garden dream - tall spikes covered in blue, purple, pink or white flowers with continuous blooming throughout June and July. Plant them at the back of the border or even in patio pots. Enjoy the sight of the bees flitting in and out of the open flowers in the summer sun and don’t forget to cut some for your vases!
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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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Delphinium FAQs
When is the best time to plant delphiniums in the UK?
You can plant delphiniums year-round, but the best planting time is in spring or early summer, which gives the plant time to get established before the colder months.
Where should I plant delphiniums in my garden?
Delphiniums will do best in a sheltered position with full sun (at least six hours per day) and in well draining soil.
How often should I water delphiniums?
Delphiniums need regular watering throughout the growing season in spring and early summer, especially when the weather is dry or hot. Be careful not to overwater them though, as they can suffer from root rot if they get waterlogged.
Do delphiniums need support?
Delphiniums have tall, slender stems with large flowers, so they usually need staking or support to stop them from flopping over. Use plant sticks or bamboo canes and tie the stems to them with soft twine or plant ties.
How do I fertilise delphiniums?
Delphiniums benefit from a feed with general purpose fertiliser in early spring as their new growth begins. A mulch of compost or well rotted manure at this time will also help to boost nutrients.
When should I divide delphinium plants?
If your delphiniums start to look a bit crowded, you can divide them every few years in early spring or autumn. Dig up the clumps and carefully separate them into smaller sections, making sure each part has plenty of healthy roots, then replant them where you want.
How do I deadhead delphiniums?
Deadheading encourages delphiniums to produce more blooms - to do this, simply snip off the faded flowers with scissors or pruners as soon as they start to fade.
How do I care for delphiniums in winter?
Delphiniums are hardy plants, but in very cold winters mulching around the base of the plants in late autumn will protect the roots from frost. Cut back the dead foliage in late autumn or early spring, but leave some stems intact to provide some protection for the crown.
