Hypericum | Heijnen Plants

Hypericum calycinum Aaron's beard

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40cm

Hypericum olympicum 'Grandiflorum' Mount Olympus St John's wort

5-10cm

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Belonging to a diverse genus, Hypericum, commonly referred to as St. John's-wort, encompasses a range of plants known for their vibrant yellow flowers and medicinal properties. The genus is versatile, with species that are evergreen, semi-evergreen, or deciduous, allowing them to adapt to various climates and conditions. Originating from Southern Europe and Southwestern Asia, Hypericum has spread across the globe, appreciated for its ornamental and therapeutic value.

Key Features

Hypericum is a valuable addition to any garden due to its long flowering period, typically from June to September, during which it produces a profusion of cheerful yellow blossoms. This genus is known for its bushy spreading growth habit, which adds a lush, textured appearance to borders, edges, and as underplanting. The foliage is equally attractive, with colors ranging from green to grey and silver, providing interest throughout the year.

Flowering: Hypericum's golden blooms are a highlight of the summer garden, lasting well into the autumn.
Foliage: The foliage of Hypericum is varied within the genus, often displaying shades of green, grey, and silver, which can persist all year in some species.
Soil and Location: Hypericum is undemanding regarding soil types, thriving in well-drained conditions, and can grow in both sun and partial shade.
Water Requirements: With an average need for water, Hypericum is quite forgiving and can handle occasional dry spells, due to its drought resistance.
Maintenance: Minimal pruning is required for Hypericum, mainly to remove any unsightly shoots or to shape the plant.

Tips

Planting: Hypericum should be planted in a location that receives full sun to partial shade to encourage optimal flowering.
Watering: While drought-tolerant, regular watering during extended dry periods will keep your Hypericum healthy.
Pruning: Prune your Hypericum in early to mid-spring to remove any damaged or unsightly shoots and to preserve the plant's shape. This timing allows the plant to recover and produce abundant blooms in the summer.
Propagation: For gardeners interested in propagation, Hypericum can be easily propagated using semi-ripe or softwood cuttings, ideally taken in the spring or early summer.
Integration: Use Hypericum in your garden for a touch of bright yellow in summer and pair with plants that have contrasting foliage colors for a stunning display.

Hypericum is a versatile genus, offering a range of species to suit different garden settings. With its bright flowers, attractive foliage, and easy-care nature, it is an excellent choice for gardeners seeking to add long-lasting color and interest to their outdoor spaces.

Types

Embrace the serene beauty and vibrant blossoms of St. Johnswort, a botanical gem that graces any landscape with its sunny, star-shaped flowers and lush, verdant foliage. This hardy and enchanting plant not only elevates garden aesthetics but also brings a cheerful spirit to your outdoor sanctuary.

The Hypericum calycinum, commonly known as Aaron's beard or large-flowered St John's wort, is a delightful addition to any garden, offering a bright splash of color with its vibrant yellow flowers. Native to regions of Southern Europe and Southwestern Asia, this plant graces the summer months of July through September with its abundant blooms. Its low-growing, spreading habit makes it an ideal groundcover, creating a tapestry of gold against the greenery of its foliage. Hypericum calycinum thrives in a variety of conditions, displaying resilience and beauty in equal measure.
The Hypericum olympicum 'Grandiflorum', also known as Mount Olympus St John's wort, is a perennial that is treasured for its vibrant yellow flowers. Blooming profusely from June to August, this plant adds a burst of color to the summer garden. Its compact form is ideal for rock gardens or as a border plant, and its flowers are particularly attractive to bees and other pollinators. With its bright flowers and easy care, Hypericum olympicum 'Grandiflorum' is a splendid choice for gardeners seeking to add cheer to their outdoor spaces.

Ideal placement of a Hypericum

To flourish, Hypericum prefers sunny locations or those with partial shade, where it can bask in natural light, encouraging profuse blooming. This adaptable genus is not particular about soil type, thriving in various conditions provided the ground is well-drained. When considering the placement, one should aim for a spot that allows for its bushy spreading growth habit, making it an excellent choice for borders and group plantings. It is important to ensure proper spacing to accommodate its spread and to promote healthy airflow around the plant.

Planting a Hypericum

For successful establishment in the garden, this species prefers a location basking in full sun to partial shade, adaptable to all soil types provided they are well-drained. The time of planting is flexible due to its pot-grown root system, making it possible to plant outside of the frost season. Upon planting, ensure that each specimen is given ample space to accommodate its bushy spreading growth habit. After positioning in the soil, water moderately to encourage root development. The adaptability of this plant to varying light conditions and its drought resistance make it a versatile addition to any planting scheme.

Fertilising a Hypericum

To ensure the vigorous growth and prolific yellow blooms of Hypericum, fertilizing should be incorporated into the care routine. Ideally, apply a balanced, slow-release fertilizer in the early spring as new growth appears. This will provide a steady supply of nutrients throughout the growing season, supporting the plant's bushy, spreading habit and the development of its distinctive grey-green foliage.

For those planted in nutrient-poor soils, a second application of fertilizer during the summer can be beneficial. However, avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flower production. Ensure that the soil remains well-drained, as Hypericum does not tolerate waterlogged conditions, which can impede nutrient uptake. With the right fertilization regimen, this plant will reward you with a vibrant display of flowers and healthy foliage through the growing months.

Pruning a Hypericum

Hypericum species are relatively low-maintenance and do not require rigorous pruning. To encourage bushy growth and maintain an attractive shape, merely remove unsightly or overgrown shoots. The best time to prune is in early to mid-spring, as the new buds begin to swell but after the last frost has passed. This approach allows the plant to recover and prepares it for producing vibrant yellow blooms in the late summer to autumn period.

Watering a Hypericum

Hypericum thrives with an average watering regime, accommodating the plant's needs particularly during its active growth in the flowering months from June to September. While it is drought-resistant, to maintain vigor and a lush appearance, ensure that the soil remains moist but well-drained, especially in full sun locations. Overwatering should be avoided to prevent potential root issues. During the establishment phase after planting or propagation, consistent moisture is critical to support healthy root development. Once established, Hypericum can tolerate periods of dryness, making it a resilient choice for varied garden conditions.

The characteristics of a Hypericum

Hypericum species are renowned for their vibrant, yellow flowers that can bring a burst of sunshine to any garden setting. An often overlooked feature is their ability to thrive in a variety of soil types, provided they are well-drained. These resilient plants also offer a secondary display of beauty with their distinctive, berry-like fruits, which can add an unexpected splash of color to the autumn landscape. For a truly diverse garden experience, Hypericum makes an excellent, low-maintenance choice.

The ideal variety for you Buy hypericum

Hypericum, with its cheerful yellow blooms and lush green foliage, is an excellent addition to any garden. This plant is not only aesthetically pleasing but also easy to care for, making it an ideal choice for both novice and experienced gardeners seeking to add a touch of radiance to their landscape.

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