Rockery flowers thrive in steep terrain, cliffs or embankments, most often exposed to the sun.
But they can also be planted on low walls, in rocky massifs, gravel.
For low walls, it is better to choose plants that can live with little soil.
Campanula of the walls
The bellflower, called
, belongs to the family Campanulaceae.
This perennial and hardy plant has evergreen, pale green foliage.
It forms a dense mat with its serrated leaves.
It can reach 10 to 15 cm in height.
This mountain plant flowers from May to July, offering beautiful clusters of blue-violet flowers.
You can install them in small gaps in the wall.
The bellflowers of the walls bloom in the sun.
Good to know
The bellflower of the walls can also be used to cover the ground, in borders or by the sea.
Moss phlox (
) is a hardy, ground-covering, evergreen perennial.
Native to North America, its flowering is abundant from April to May.
Its colorful flowers (pink, mauve, lavender, blue, etc.) with indented petals are pleasantly scented.
Resistant to drought, it measures about fifteen cm in height.
It appreciates a sunny or partial shade exposure.
Very suitable for rock gardens and beds, you can also create pretty bouquets of cut flowers.
Did you know ?
Good to knowThe faded inflorescences should be cut off just above the leaves to prevent the formation of fruits.
Sedum acre or wall pepper is a perennial plant with a creeping habit.
Easy to grow, it forms a pretty carpet with its tiny yellow flowers in inflorescences.
Sedum acre flowers from spring to summer.
It is invasive but can be controlled easily.
It measures 5 cm in height.
The different varieties of sedum (or Orpins) will allow you to put pretty colorful touches on your low wall exposed to the sun.
Read alsoGazania, for sunny rock gardens
is a compact, creeping perennial from the Brassicaceae family.
With its evergreen green leaves, panaceous in white, it is ideal for flowering a low wall in full sun.
This 5 cm high plant offers in spring, from March to May, pretty flowers with four petals, pink or lavender.
Plant it in spring or fall.
Pierre-André Lagneau, head gardener at Truffaut, advises the
to decorate a low wall: “
It grows without worries.
It is absolutely perfect, very pretty and it comes back year after year
Good to know
Aubrieta can also be used on the edge of beds and flowerbeds.
Read alsoAubriette, beautiful colorful rugs
The Alyssum of the rocks
A rock garden plant par excellence, the rock alyssum (
is a hardy perennial of the Brassicaceae family.
Originally from Crete, the alyssum measures about twenty centimeters in height.
Cold-hardy, they form pretty clusters of flowers cascading over a low wall, when flowering in late spring and early summer.
Plant them in sun or partial shade.
If your low wall is in the shade, Pierre-André Lagneau recommends dead nettles (
), belonging to the Lamiaceae family.
Perennials, these groundcovers thrive in shade and are easy to grow.
They make lovely single flowers, often yellow.
Lamiums, which require little soil, are very suitable for rock gardens.
For your walls you can also opt for:
Good to know
If you wish to put ivy on your low wall, Pierre-André Lagneau recommends the greatest vigilance.
Ivy should be banned on a stone wall that is not in perfect condition.
If there are gaps, he could rush in and damage everything.
This advice obviously also applies to house facades: the joints must be impeccable.