Unpack bare roots or rhizomes on arrival and plant them within a week. Until then, keep them somewhere cool and ensure the roots remain slightly moist, never wet.
Out of season
New
Delphinium
'Sweet Sensation'
larkspur
Delphinium 'Sweet Sensation' is as charming as its name suggests, lending borders a touch of romance mixed with just the right amount of stateliness. From a neat mound of deeply lobed, fresh green foliage, tall and sturdy stems rise proudly, carrying towers of frilly, double blooms. The flowers shimmer in shades of violet, touched with hints of blue-green that give them an almost iridescent quality in certain lights. This larkspur is a natural performer, combining elegance with exuberance and ensuring it never blends quietly into the background. Instead, Delphinium 'Sweet Sensation' insists on being noticed — in the most tasteful way, of course.
There’s a layered richness to Delphinium 'Sweet Sensation' (Highlander Series) that makes it a superb anchor in summer plantings. The ruffled flowers bring depth and texture, softening the vertical spires into something both dramatic and gentle. Positioned towards the middle or back of a border, Delphinium 'Sweet Sensation' partners effortlessly with roses, peonies or even ornamental grasses, offering contrast while holding its own. Cut stems look wonderfully decadent in a vase, where their blend of violet and subtle blue-green tones offers a cool, calming presence indoors. Whether you’re after architectural impact or a dose of romantic flourish, Delphinium 'Sweet Sensation' delivers a long-lasting display that truly earns its name — a sweet garden pleasure from every angle.
Quantity
Plant profile
Plant calendar
Remove the packaging straight away, check the compost and water thoroughly if dry. Check the plant’s hardiness before placing it outdoors. Plant into a border or permanent container within a month, choosing the position recommended for the variety. Keep the top of the root ball level with the surrounding soil, firm gently and water well.
Soak the roots in water for three to six hours immediately before planting. Keep any crown, buds or emerging shoots above the water where possible.
Pot most bare roots into 15–20cm pots filled with peat-free multipurpose compost. Large or depth-sensitive roots, including peonies, are often best planted directly into borders.
Arrange the roots naturally without bending them. Cover the roots completely, positioning the crown and buds at the depth recommended for that particular perennial.
Keep pots in a sheltered outdoor position and water whenever the compost begins to dry. Grow on until roots hold the compost together when lifted from the pot.
Plant into a suitable border or permanent container once well rooted. Add a label and water regularly throughout the first growing season while the perennial establishes.
- Botanical name
- Delphinium 'Sweet Sensation'ᴾᴮᴿ (Highlander Series)
- Flower colour
- Purple, blue
- Established height
- 1-1.2m
- Established spread
- 30-50cm
- Growing skill
- Easy to grow
- Habit
-
Upright
Clump-forming - Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- No
- Plant size
- 1
- Plant spacing
- 5 plants per m2
- Pollinator friendly
- No
- Position
- Sheltered
- Rabbit resistant
- Yes
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Sandy
Stony
Multipurpose compost
Loam-based compost - Suitable for
-
Large containers
Borders
Cottage gardens
Low maintenance gardens
Cut flower gardens - Sunlight
- Full sun
- Toxicity
-
Skin/eyes irritant
Harmful if eaten - Years to establish
- 2-3 years
Good for cutting
Pollinator-friendly
Thrives in full sun
Perennial
Fully hardy
Packed peat-free
Low maintenance
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Our horticulturalists prepare every bulb and plant with the utmost care. From selection to packing, each one receives expert attention before beginning its journey to your garden.
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From cultivation to packaging and delivery, we are always looking for ways to lessen our environmental impact.
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Our care team of horticultural experts is on hand to support you choose and garden with confidence.
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Chosen to thrive
Every bulb and plant is sourced, selected and prepared with an expert eye for their quality and garden performance.
