






Echinops bannaticus

Gypsophila paniculata

Achillea millefolium

Echinops bannaticus

Achillea millefolium

Achillea ptarmica

Sedum telephium

Limonium latifolium

Alchemilla mollis

Achillea millefolium

Achillea millefolium

Knautia macedonica

Salvia nemorosa

Sanguisorba officinalis

Verbena bonariensis

Achillea millefolium

Lychnis coronaria

Liatris spicata

Gypsophila paniculata

Geum rivale

Sedum spectabile

Delphinium hybrida

Solidago canadensis

Verbascum nigrum var. album

Perovskia

Aquilegia vulgaris

Achillea millefolium

Salvia nemorosa

Papaver orientale

Cephalaria gigantea
Growing the sea holly 'Glitter White' is an ideal choice even for beginning gardeners who desire a striking but undemanding perennial. Crucial for successful growth is selecting the right location. This plant unconditionally requires full sun and heat; in the shade, it would not bloom and would languish. The soil must be well-draining, sandy, and rather poor in nutrients. Sea holly does not tolerate heavy, clay, and waterlogged soils, in which its roots rot in winter. If you have heavier soil in your garden, you must lighten it with gravel or sand before planting the seedling, or create a raised bed where water drains quickly. When planting, keep a spacing of about 45–50 cm (3 to 5 plants per m²) so that air can flow freely between the plants, which functions as prevention against fungal diseases.
Regarding watering and nutrition, sea holly is a typical plant of dry steppes and gravel beds. Seedlings need more regular watering only shortly after planting, until they are sufficiently rooted. Adult plants are very drought-resistant and require additional water only during periods of extreme heat. Avoid over-fertilizing, especially with fertilizers high in nitrogen. In overly nutritious soil, sea holly loses its compact shape, stretches out, and may lodge. The plant has a strong taproot that allows it to draw moisture from the depths, but at the same time makes it sensitive to transplanting, so plant it directly into its permanent place. Watch out for voles, which really like the sweet roots of sea hollies.
Maintenance during the season is minimal. Sea holly is indeed a short-lived perennial, but it reliably maintains itself in its location by self-seeding, if you allow it to. You can remove faded inflorescences in autumn to prevent self-seeding, or leave them on the plant for a winter effect, when the silvery heads frosted by frost look magical. The plant is fully hardy (down to -34 °C), so it does not need winter protection as long as it has dryness at the roots. If you would like to grow 'Glitter White' in a container, it is possible, but choose a deeper pot because of the long root. Put a thick drainage layer at the bottom and use a substrate mixed with sand in a 1:1 ratio. On the balcony, place it in the warmest and sunniest spot.
The information given is based on our experience, please use it as a guide only. Times may vary depending on the season, climate, location, sowing and transplanting dates and possibly also the conditions in the greenhouse/greenhouse. We always recommend testing how the plant performs in your conditions. Please do not take this as a guarantee.
See how the seedling looks over the course of a year.















Eryngium planum

Eryngium planum

Eryngium planum

Eryngium yuccifolium

Eryngium alpinum

Alchemilla mollis

Achillea millefolium

Verbena bonariensis

Salvia nemorosa

Perovskia atriplicifolia

Gaura lindheimeri

Echinacea purpurea

Echinacea pallida

Eryngium planum

Echinacea purpurea

Salvia nemorosa

Calamintha nepeta

Rudbeckia fulgida

Calamintha nepeta ssp. nepeta

Gaura lindheimeri

Salvia nemorosa

Leucanthemum vulgare

Achillea millefolium

Perovskia atriplicifolia

Salvia nemorosa