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Perennial flower
Hypericaceae
Common St. John's Wort
Hypericum perforatum
Product code : JAREC-0149
Common St. John's wort is a perennial with small yellow flowers clustered at the top of branching stems. It is suitable for sunny ornamental planting where its spread can be monitored. Its name is associated with herbalism, but cultivation in the garden is not an indication for preparing or using a remedy. These organic seeds from Jardins de l’écoumène allow you to prepare your own plants and follow their development from sowing. Design the composition taking into account the adult habit and the distance from which the flowers will be observed. The small corollas benefit from being placed closer to a path, while a tall silhouette can serve as a landmark at the back of a bed.
- Quantity
- Around 250 seeds
- Exposure
- Sun
- Life cycle
- Perennial
Discover the plant
Common nameCommon St. John's Wort
FamilyHypericaceae
GenusSt. John's wort
Speciesperforated
TypePerennial flower
Botanical nameHypericum perforatum
Reproducible seedsYes
Heirloom varietyYes
Common St. John's Wort (Hypericum perforatum). Common St. John's Wort is a perennial with small yellow flowers clustered at the top of branched stems. It is suitable for sunny ornamental planting where its spread can be monitored. Its name is associated with herbalism, but growing it in the garden is not an indication for preparing or using a remedy. These organic seeds from Jardins de l’écoumène allow you to prepare your own plants and monitor their development from sowing. Design the composition taking into account the adult habit and the distance from which the flowers will be observed.
Recommended sowing period: April to June. The depth to respect is 0.2 to 0.5 cm (0.1 to 0.2 in). Germination usually takes 14 to 28 days. For germination, maintain the potting soil at 18 to 22 °C (64 to 72 °F). Transplant young flowers when their true leaves have developed and their roots hold the root ball. Handle seedlings gently and avoid compressing the stem. Under lighting, gradually space out the containers so that the foliage does not overlap. Acclimatization then prepares the plants for sun, wind, and temperature variations.
To plant common St. John's Wort, reserve a permanent spot for this perennial. St. John's Wort, a yellow-flowered plant, integrates into a naturalistic planting where its development can be monitored over the seasons. Design the composition taking into account the adult habit and the distance from which the flowers will be observed. The small corollas benefit from being close to a pathway, while a tall silhouette can serve as a landmark at the back of a bed. Repeat a few plants of the same variety to make the color legible. Maintain access for pruning and avoid crowding the clumps just to immediately fill the space.
Sowing guide
It all startswith a seed.
Sowing depth
0.2 to 0.5 cm (0.1 to 0.2 in.)
Germination temperature
18 to 22°C (64 to 72°F)
Germination time
14 to 28 days
Sowing period
April to June
Propagation
Sowing
Growing method
Recommended sowing period: April to June. The depth to respect is 0.2 to 0.5 cm (0.1 to 0.2 in). Germination usually takes 14 to 28 days. For germination, maintain the potting mix at 18 to 22 °C (64 to 72 °F). Transplant young flowers when their true leaves have developed and their roots hold the soil ball. Handle seedlings gently and avoid compressing the stem. Under grow lights, gradually space out the containers so that the foliage does not overlap. Acclimatization then prepares the plants for sun, wind, and temperature variations. Planting out is done when conditions match their hardiness. Observe the succession of buds, open flowers, and faded parts to choose useful interventions. A cut should preserve the shoots that will flower next. For tall-stemmed plants, check supports after a windy period. A light cleaning helps maintain the silhouette without stripping it bare. Adapt the end of the season to the plant's cycle: annuals and perennials do not require the same preparation for winter. Choose between prolonging flowering and saving seeds on a few stems.
Soil and care
The right care,at the right time.
Care level
Regular during establishment, then adapted to growing conditions
Watering
Regular
Soil type
Well drained
Fertilization
Fertilization supports growth and takes into account the nutrients already present in the soil or potting mix. Use mature compost or a fertilizer suited to the crop, following the dosage instructions. Avoid using multiple products, especially in a container where roots occupy a limited volume. Water as needed after application and observe leaf development before re-fertilizing.
Moisture
Keep the soil moist during germination, without waterlogging; then adjust to the crop.
Seasonal care
To plant common St. John's wort, reserve a permanent spot for this perennial. St. John's wort, a yellow-flowered plant, fits into a naturalistic planting where its development can be monitored throughout the seasons. Transplant young flowers when their true leaves have developed and their roots hold the root ball. Handle seedlings gently and avoid compressing the stem. Under lighting, progressively space out the containers so that the foliage does not overlap. Acclimatization then prepares the plants for sun, wind, and temperature variations. Planting takes place when conditions match their hardiness. Observe the succession of buds, open flowers, and faded parts to choose useful interventions. Pruning should preserve the shoots that will flower next. For tall-stemmed plants, check supports after a windy episode. A light cleaning helps maintain the silhouette without stripping it bare. Adapt the end of the season to the plant's cycle: annuals and perennials do not require the same preparation for winter. Choose between extending flowering and preserving seeds on some stems. Removing faded flowers is suitable for many annuals, while capsules and dry inflorescences can have decorative appeal. Keep plants identified when they no longer bear flowers and remove spontaneous seedlings that are blocking a path. Common St. John's wort is a perennial with small yellow flowers gathered at the top of branched stems.
Container growing
A garden,within reach.
Recommended pot size
Pots that are stable and have drainage holes, with sufficient width for the plant to spread out and enough depth for the roots
Choose this exposure: full sun. Reserve this spread around the plant: 30 to 60 cm (12 to 24 in). A floral composition in a container must leave room for the growth of each plant. Place upright forms where they remain visible and allow trailing stems to occupy the edge when present. Ensure that the combined plants share the desired exposure and moisture. After a few weeks, observe areas that become denser and only remove damaged parts or stems that disturb the balance of the composition. Common St. John's Wort is a perennial with small yellow flowers clustered at the top of branched stems. It is suitable for sunny ornamental planting where its spread can be monitored. Its name is associated with herbalism, but cultivation in the garden does not constitute an indication for preparing or using a remedy. Observe the succession of buds, open flowers, and faded parts to choose appropriate interventions. A trim should preserve the shoots that will flower next. For tall-stemmed plants, check supports after a windy episode. Light cleaning helps maintain the silhouette without stripping it bare.
Bloom and dimensions
Its place,in your garden.
Mature height
60 to 100 cm (24 to 40 in)
Width / spread
30 to 60 cm (12 to 24 in)
Growth habit
Bushy
Bloom period
June to August
Harvest
June to August
Garden associations
In goodcompany.
Companion plants
In a diversified plantation, you can reserve neighboring sections for these plants: lavender, yarrow, sage. The association here serves to organize space and harvests. Respect the height, light, and water needs of each plant, without crowding the foliage. Maintain a path for watering and picking, then remove finished crops to free up space. This organization facilitates maintenance without promising protection against pests. Design the composition taking into account the mature habit and the distance from which the flowers will be observed.
Frequently asked questions
Your questions,answered.
How to successfully sow St. John's Wort?
Recommended sowing period: April to June. The recommended depth is 0.2 to 0.5 cm (0.1 to 0.2 in). Germination usually takes 14 to 28 days. For germination, keep the potting mix at 18 to 22 °C (64 to 72 °F). Transplant young flowers when their true leaves have developed and their roots hold the soil ball. Handle seedlings gently and avoid compressing the stem. Under grow lights, progressively space out the containers so that the foliage does not overlap. Acclimatization then prepares the plants for sun, wind, and temperature variations.
Can common St. John's Wort be grown in a pot?
Choose this exposure: sun. Reserve this spread around the plant: 30 to 60 cm (12 to 24 in). A flowering container arrangement should allow space for each plant to grow. Place upright forms where they remain visible and let trailing stems occupy the edge when present. Ensure that the combined plants share the desired exposure and moisture. After a few weeks, observe the areas that are becoming denser and only remove damaged parts or stems that disrupt the balance of the arrangement. Common St. John's Wort is a perennial with small yellow flowers clustered at the top of branched stems.
How to care for Common St. John's Wort during the season?
Choose between extending the flowering period and preserving seeds on a few stems. Deadheading is suitable for many annuals, while dried capsules and inflorescences can have decorative appeal. Keep plants identified when they are no longer in flower and remove self-seeded plants that are blocking a path. Observe the succession of buds, open flowers, and faded parts to choose useful interventions. A cut should preserve the shoots that will flower next. For tall-stemmed plants, check the supports after a windy period. Light pruning helps maintain the silhouette without making it look bare.
How to enjoy Common St. John's Wort in your garden?
To plant common St. John's Wort, reserve a permanent spot for this perennial. St. John's Wort, a plant with yellow flowers, fits well into a naturalistic planting scheme where its development can be observed throughout the seasons. Common St. John's Wort is a perennial with small yellow flowers clustered at the top of branched stems. It is suitable for a sunny ornamental planting where its spread can be monitored. Its name is associated with herbalism, but cultivation in the garden is not an indication for preparing or using a remedy. Design the composition taking into account the mature habit and the distance from which the flowers will be observed. The small corollas benefit from being placed close to a path, while a tall silhouette can serve as a landmark at the back of a bed.
How to plant St. John's Wort?
Draw the composition taking into account the adult habit and the distance from which the flowers will be observed. Small flowers benefit from being placed close to a path, while a tall silhouette can serve as a landmark at the back of a bed. Repeat a few plants of the same variety to make the color legible. Keep access for cutting and avoid packing clumps too tightly just to fill the space immediately. Observe the succession of buds, open flowers, and faded parts to choose useful interventions. A cut must preserve the shoots that will flower next. For tall-stemmed plants, check the supports after a windy spell.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Flowers can host pollinating insects during the season. Plant several plants in a sunny area accessible to visitors, then avoid treating open flowers. Keep some of the blooms in the garden if you also cut stems for bouquets.
For a great start to your seeds
The right extras.Right here.
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