




Helianthemum hybrida

Silene schafta

Silene uniflora

Helleborus orientalis

Sedum spectabile

Helianthemum hybrida

Perovskia

Rudbeckia fulgida

Echinops bannaticus

Helleborus orientalis

Delphinium hybrida

Lychnis coronaria

Rudbeckia fulgida var. deamii

Echinacea purpurea

Achillea millefolium

Salvia nemorosa

Lychnis flos-cuculi

Alchemilla mollis

Chamaemelum nobile

Campanula glomerata

Geum chiloense

Gypsophila paniculata

Verbena bonariensis

Anaphalis triplinervis

Delphinium elatum

Coreopsis verticillata

Verbascum chaixii

Geum rivale

Hyssopus officinalis

Catananche caerulea
Growing Sulphureum Plenum rock rose is a joy even for complete beginners, because it is a plant that offers maximum show for minimum care. The key to success is choosing the right spot. This perennial, or rather semi-shrub, absolutely requires full sun and a warm place. Shade does not suit it; it blooms little and stretches in it. The soil should be poor, very well-drained, ideally sandy or stony. If you have heavy clay soil in your garden, you must mix in sand or fine gravel when planting so that water drains away quickly. Rock rose cannot tolerate waterlogging, which is more dangerous for it than drought.
When planting, maintain a spacing of approximately 30 cm, which equates to about 9 to 12 plants per square meter if you want to create a continuous carpet. Plant the seedling as deep as it was in the pot and water it after planting. Once the plant takes root, it becomes very tolerant to drought and only requires watering during extremely hot and dry periods. Fertilizing is not necessary; on the contrary, in overly nutritious soil, the plant grows lushly at the expense of blooming and can lose its frost hardiness. A great advantage of this cultivar is its resistance to diseases and pests, so chemical protection is generally not needed.
A key step in caring for the rock rose is the summer pruning. Immediately after blooming, which is usually during July, we recommend cutting the plant back by roughly a third to a half of the length of the shoots. This intervention will encourage the formation of new, dense shoots, maintain the compact cushion shape, and prevent the center of the plant from becoming bare. Since the rock rose is evergreen and decorates the garden even in winter (the so-called winter effect), we do not prune in the autumn or spring, so as not to deprive ourselves of the foliage ornament. The plant is fully frost-hardy (down to -23 °C), but during black frosts, it can benefit from a light covering with evergreen branches, which will prevent the leaves from drying out from the winter sun.
Rock rose is also perfectly suited for growing in containers or window boxes on sunny terraces and balconies. When growing in a pot, it is absolutely essential to ensure perfect water drainage. Put a layer of expanded clay or gravel at the bottom of the container and use a substrate mixed with sand in a 1:1 ratio. In containers, soil freezes faster than in the open ground, so it is advisable to wrap the pot in jute or polystyrene for the winter and water slightly on frost-free days so the plant doesn't dry out.
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.
The product can be found in the following collections.






Collection of perennials and bulbs
A selection of the most resilient yet delicate and refined species for hot spots in full sun. They are forgiving if you occas…
See how the seedling looks over the course of a year.










Helianthemum hybrida

Helianthemum hybrida

Helianthemum hybrida

Alchemilla mollis

Achillea millefolium

Verbena bonariensis

Salvia nemorosa

Perovskia atriplicifolia

Gaura lindheimeri

Echinacea purpurea

Echinacea pallida

Salvia nemorosa

Eryngium planum

Echinacea purpurea

Calamintha nepeta

Rudbeckia fulgida

Calamintha nepeta ssp. nepeta

Salvia nemorosa

Gaura lindheimeri

Leucanthemum vulgare

Achillea millefolium

Perovskia atriplicifolia

Salvia nemorosa