Hypericum prolificum
TAXONOMY
FamilyHypericaceae
GenusHypericum
Zone4
LEARN MORE
Plants of the World OnlineABOUT
Hypericum prolificum, commonly known as Shrubby St. John's Wort, is a deciduous shrub native to North America. It typically grows in temperate climates and is known for its bright yellow flowers that bloom in summer. The plant is part of the Hypericaceae family and is well-suited for garden landscapes due to its hardiness and low maintenance requirements.
ALSO KNOWN AS
Shrubby St. John's Wort
Brathys prolifica
Hypericum cryptopetalum
Hypericum kalmianum var. majus
Hypericum spathulatum
Myriandra prolifica
Myriandra prolifica var. spathulata
Myriandra spathulata
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Hypericum prolificum thrives in direct bright light and prefers moderate temperatures. It is relatively low-maintenance and can tolerate periods of drought. Regular watering is necessary, but the soil should be allowed to dry out between waterings. The plant does well in average humidity levels and can withstand a range of temperatures typical of temperate climates.Soil
This plant prefers well-draining loamy soil. It can tolerate a range of soil types but performs best in soil that is not too compacted. Good drainage is essential to prevent root rot, so a soil mix that includes sand or perlite can be beneficial.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is suitable for Hypericum prolificum. Fertilize the plant in early spring and again in mid-summer to promote healthy growth and flowering. Avoid over-fertilizing as it can lead to excessive foliage growth at the expense of flowers.Repotting
Repotting is generally not necessary for this shrub as it is typically grown outdoors. However, if grown in a container, repotting every 2-3 years is recommended to refresh the soil and provide more space for root growth. Choose a slightly larger pot and ensure good drainage.Propagation
Hypericum prolificum can be propagated through seeds, cuttings, or division. The best time to take cuttings is in late spring or early summer. Use a rooting hormone to encourage root development and plant the cuttings in a well-draining soil mix. Keep the soil moist until roots are established.Pruning
Pruning is beneficial for maintaining the shape and health of the plant. Prune in late winter or early spring before new growth begins. Remove any dead or damaged branches and thin out crowded areas to improve air circulation. Light pruning after flowering can also encourage a more compact growth habit.Toxicity
Hypericum prolificum is not known to be toxic to pets or humans. However, as with all plants, it is advisable to prevent pets and children from ingesting any part of the plant.Additional
Hypericum prolificum is a great addition to garden landscapes due to its attractive flowers and low maintenance requirements. It is also beneficial for pollinators such as bees and butterflies. The plant can tolerate a range of soil conditions and is relatively drought-resistant once established.REVOLUTIONIZE YOUR PLANT CARE
Make Every Plant Smart
Plant Monitor
STAYS IN YOUR PLANT
Accurately measures the core metrics of your plant – soil moisture, light, temperature and humidity - as well as compound metrics such as Vapor Pressure Deficit (VPD) and Growing Degree Days (GDD).
Shop Now
