Perennials are mostly undemanding plants, with many species and cultivars to choose from. However, only some of them will bloom throughout the entire summer.

In short: Perennials that bloom for a long time include cranesbills, coreopsis, garden phlox, woodland sage and purple coneflower. Coreopsis flowers from July to September, sometimes until November, and garden phlox from July to September. Woodland sage starts in May and, if trimmed after flowering, blooms again in September.

Cranesbills (Geranium)10–100 cm, May to June, sometimes until September
Coreopsis30–60 cm, July to September, sometimes November
Garden phloxover 1 m, July to September
Woodland sagefrom May, reblooms in September after trimming
Purple coneflowerup to 1 m tall
Rock cressApril to May

Perennials offer a wide palette of colors, heights and shapes. Some can be decorative even with their leaves, others have a beautiful fragrance, and others are suitable for cutting or drying. They beautifully complement corners with shrubs or bulbs.

Many of them also love dry sunny locations and can therefore stand out in rock gardens and on walls. Moreover, they are less demanding to grow than annuals, which need to be sown again every year. Perennials generally bloom for a somewhat shorter time, but exceptions can be found.

Cranesbills

Among perennials with a long flowering period are, for example, various cultivars of cranesbills (Geranium), commonly called hardy geraniums (due to their beak-shaped fruits). We can choose from many cultivars, with flower colors ranging from pink through white to dark blue-violet.

These are very undemanding plants available in dozens to hundreds of cultivars. They survive for many years in their location. There are cultivars suitable for various types of locations. Height ranges from 10 - 100 cm. They bloom in May and June, sometimes until September.

Coreopsis

From July to September, sometimes until November, coreopsis (Coreopsis) continues to bloom. This is a taller perennial (up to 30 - 60 cm).

They bloom abundantly with cheerful bright colors in shades of yellow and red. Large-flowered coreopsis is most commonly grown. It thrives best when grown as a specimen plant.

The flowers are also suitable for cutting. By removing faded shoots, you allow the coreopsis to bloom again. An undemanding perennial that can be propagated by dividing clumps.

Garden Phlox

Garden phlox (Phlox paniculata) blooms from July to September. These are very popular perennials. Growth is bushy, height exceeds 1 meter. They require humus-rich soil and full sun or partial shade. Suitable for cutting.

Salvias

Salvia (Salvia) begins to bloom as early as May. There are many species of salvia, but woodland sage (Salvia nemorosa) blooms the longest. With its blue-violet flowers, it can beautify the garden throughout the summer while filling the air with its typical fragrance. It requires a sunny, non-waterlogged location and is undemanding in care. If trimmed after flowering, it blooms again in September.

Coneflowers

Another beautiful perennial that also has significant medicinal effects is purple coneflower, also known by its Latin name Echinacea purpurea.

The flowering plant is up to 1 meter tall, with white, pink to purple flowers.

For its medicinal properties, the petals are collected or a tincture is made from the roots. It is mainly used to support immunity, improving the formation and mobility of white blood cells.

The plant is undemanding to grow, adapts to various soil types, but requires plenty of light.

Bleeding Hearts

Bleeding hearts (Dicentra spectabilis) bloom with beautiful unusual flowers. Plants are grown with either white or pink flowers. They bloom from early May to June. They prefer a shaded location with sufficient moisture. A mature flowering plant is just under a meter tall, but there are also lower cultivars up to 20 cm.

Rock Cress

Rock cress (Aubrieta) forms dense low cushions of white, red or blue flowers. It blooms relatively early, from April to May. Some varieties are capable of blooming again. Also suitable for sowing in containers.

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