Overview
Lysimachia nummularia, commonly known as Creeping Jenny or Moneywort, is a herbaceous perennial plant native to Europe and western Asia. It belongs to the primrose family, known as Primulaceae. The plant is popularly grown as a ground cover in gardens and has many medicinal uses.
Appearance
The plant typically grows up to 2-4 inches tall and trails vigorously, forming a dense mat of bright green, round leaves that remind one of small coins with a slightly scalloped margin. The flowers are small and yellow with five petals that bloom in early summer.
Uses
Cultivated as an ornamental plant for its vibrant, attractive foliage and tolerance of various growing conditions, Lysimachia nummularia is perfect for edging walkways, filling in gaps in rock gardens, and providing low-growing coverage to bare ground. The plants thrive in moist and shaded areas and are used for erosion control and streamside plantings.
Creeping Jenny has also been used in traditional medicine, including in the treatment of wounds, hemorrhoids, and rheumatic pain. Ingesting the plant in large quantities can cause vomiting and stomach upset, so caution should be taken when using it as a medicinal herb.
Light Requirements
Lysimachia nummularia thrives in bright, indirect sunlight or partial shade. It tolerates full sunlight but only if the soil is kept consistently moist. This plant requires a minimum of four hours of sunlight per day to maintain good growth.
Temperature Requirements
This plant prefers moderate temperatures and can tolerate a range between 60° to 75°F (15° to 24°C). It can also tolerate colder temperatures but only for short periods. If the temperature drops below 50°F (10°C), the plant's growth rate will decrease. If the temperature exceeds 85°F (29°C), the plant may wilt or become scraggly.
Soil Requirements
Lysimachia nummularia prefers well-draining soil that is rich in organic matter. It can grow in a variety of soil types, including loamy, sandy, and clay soils. The soil pH should be neutral to slightly acidic, ranging between 6.0 and 7.0. To keep the soil moist, add a layer of mulch, such as shredded leaves or bark chips.
Cultivation methods
Lysimachia nummularia is a low-growing perennial plant that is relatively easy to grow. It prefers well-draining soil and a spot that receives full sun or partial shade. The plant can grow in a variety of soil types, including sandy or loamy soils.
It is best to plant Lysimachia nummularia in the spring or fall to give it ample time to settle into its new environment. Plant the cutting or seedlings at least 6 inches apart and make sure the soil is consistently moist for the first few weeks.
Watering needs
Lysimachia nummularia likes moist soil and will benefit from frequent watering during the warmer months. However, it is crucial to avoid overwatering the plant as this can lead to root rot and other issues. Water the plant deeply once or twice a week, depending on the weather conditions.
Fertilization
Fertilizing Lysimachia nummularia once a year is recommended for optimal growth. Apply a balanced, slow-release fertilizer during the growing season to give the plant a nutrient boost. Avoid over-fertilizing as this can lead to excessive growth and decreased plant health.
Pruning
Lysimachia nummularia does not require pruning, but occasional deadheading can help promote healthy growth and a tidier appearance. Remove any spent flowers or wilted leaves to keep the plant looking its best. If the plant starts to look spindly, cut back the stems to encourage fuller growth.
Propagation of Lysimachia nummularia
Lysimachia nummularia, commonly known as creeping jenny, is a herbaceous perennial plant that is native to Europe, but has been naturalized in other parts of the world. It is a low-growing plant that features small, rounded leaves and yellow, cup-shaped flowers. The plant is commonly used in ground covers and hanging baskets, and is a low-maintenance option for gardeners.
Propagation by Cuttings
One of the most common methods of propagating Lysimachia nummularia is by taking stem cuttings. Cuttings can be taken from the plant in the spring or summer when the plant is actively growing. Choose a healthy stem and make a clean cut just below the node. Remove the lower leaves and dip the cut end of the stem in rooting hormone. Place the cutting in a pot filled with well-draining soil and keep the soil moist. It should take about four to six weeks for roots to form.
Propagation by Division
Lysimachia nummularia can also be propagated by division in the spring or autumn. Simply dig up the plant and use a sharp knife or shovel to divide the plant into smaller sections. Each section should have several stems and a good root system. Replant the divisions in well-draining soil, making sure to keep the soil moist until the new plants become established.
Propagation by Seed
Lysimachia nummularia can also be propagated by seed. The plant produces small, black seeds that can be collected in the fall. Seeds can be sown directly into the soil in the spring, but it is recommended to start them indoors several weeks before the last frost. Sow the seeds on the surface of moist soil and cover lightly with a thin layer of soil. Keep the soil moist and the temperature between 60-75°F. Seeds should germinate in about 10-14 days.
Overall, Lysimachia nummularia is a relatively easy plant to propagate, and gardeners have several options to choose from depending on their preference and needs.
Disease and Pest Management for Lysimachia nummularia
Lysimachia nummularia, commonly known as Creeping Jenny, is a hardy plant with few disease and pest issues. However, it can be affected by some common problems that can weaken or even kill the plant. Here are some of the most common diseases and pests that affect Lysimachia nummularia and ways to manage them.
Diseases
Creeping Jenny is mostly disease-free, but in some cases, it can be affected by the following diseases:
- Botrytis blight: This is a fungal disease that causes grey mold on the leaves and stem. It can be managed by removing affected plant parts and encouraging good air circulation around the plant.
- Crown Rot: Crown rot is a disease caused by a soil-borne fungus that attacks the base of the plant, turning it brown or black. To manage this disease, remove the affected plant and improve soil drainage.
- Rust: Rust is a fungal disease that can cause yellow spots on leaves, stems, and flowers. It can be managed by removing affected plant parts and avoiding wetting the foliage when watering.
Pests
Creeping Jenny can attract a few pests, but they rarely cause severe damage. Here are some common pests that affect Lysimachia nummularia and ways to manage them.
- Slugs and snails: Creeping Jenny can be a favorite food for slugs and snails. They can be managed by placing a natural slug and snail repellent, such as copper tape, around the plant. Additionally, placing beer traps can attract and drown them.
- Aphids: Aphids are tiny, pear-shaped insects that can cause curling, yellowing, and stunted growth of plants. They can be managed by using a strong stream of water to wash them off or applying insecticidal soap.
- Spider mites: Spider mites are tiny, spider-like pests that can cause webbing and yellow specks on leaves. They can be managed by spraying the foliage with water or using an insecticidal soap or oil.
By taking the appropriate steps to manage diseases and pests, Lysimachia nummularia can thrive and remain a beautiful addition to any garden or landscape.
