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
Eryngium
'Magical Silver'
sea holly
Let your summer sparkle with this gleaming highlight, Eryngium 'Magical Silver'! With frosty-looking cool green blooms, this sea holly will provide lasting interest through the season. Not only is it a great-looking and easy-going garden plant, but bees and butterflies will be keen on its nectar-rich flowers too. Strong, upright stems are self supporting and the display is prolific and enduring—as if that wasn’t enough, snip a few stems and you’ll find they’re amazing cutflowers too!
Eryngium 'Magical Silver' remains strong and attractive for an impressive amount of time. The foliage is a soft sage grey-green, the blooms, from July to September, are similar hue but with a lustrous, icy glaze. When the colour fades in autumn, the plant stems and seedheads of Eryngium planum 'Magical Silver' remain a structural feature in a border. This fully hardy, drought tolerant perennial isn’t fussy, but does best in free-draining poor or sandy soils. If you have a gravel area or a sun-baked border, include this starry number and enjoy its undemanding charm.
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
- Eryngium planum 'Magical Silver'
- Flower colour
- Green, cream
- Established height
- 50-70cm
- Established spread
- 20-30cm
- Growing skill
- Easy to grow
- Habit
-
Upright
Clump-forming - Hardiness
- Fully hardy
- Leaf colour
- Green, blue
- Mouse resistant
- Yes
- Plant size
- 1
- Plant spacing
- 9 plants per m2
- Pollinator friendly
- Yes
- Position
-
Sheltered
Exposed - Rabbit resistant
- Yes
- RHS Award (AGM)
- Yes
- Scented
- Yes
- Soil acidity
- Any
- Soil moisture
-
Free draining
Dry - Soil type
-
Loam
Sandy
Clay
Multipurpose compost
Loam-based compost - Suitable for
-
Borders
Coastal gardens
Cottage gardens
Cut flower gardens
Pots
Large containers - Sunlight
- Full sun
- Toxicity
- No report
- Years to establish
- 1-2 years
Good for cutting
Pollinator-friendly
Fragrant
Thrives in full sun
RHS Recommended
Perennial
Fully hardy
Packed peat-free
Drought tolerant
-20%
Paeonia 'Lemon Chiffon'
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Expert care from
choice to delivery
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.
Growing together
Our care team of horticultural experts is on hand to support you choose and garden with confidence.
World of wonders
A collection of world-renowned flower bulbs and perennials of exceptional beauty and character.
Chosen to thrive
Every bulb and plant is sourced, selected and prepared with an expert eye for their quality and garden performance.
