Overview
Nasturtium sphaerocarpum Gray, also known as Globe-podded Watercress, is a small perennial herb that belongs to the mustard family, Brassicaceae. It is native to North America and can be found in wetlands, marshes, and streams across the western part of the United States.
Common Names
Aside from Globe-podded Watercress, Nasturtium sphaerocarpum Gray also goes by several other names, including Round-fruited Watercress, Little Western Watercress, and Small-fruit Watercress.
Uses
The leaves of Nasturtium sphaerocarpum Gray can be consumed raw or cooked. They have a slightly peppery taste and are said to have a high vitamin C content. The stems and flowers of the plant are also edible and add a colorful addition to salads. Native tribes in the western United States have used Globe-podded Watercress to treat various ailments, such as toothaches, sore throats, and urinary tract infections.
General Appearance
Nasturtium sphaerocarpum Gray is a small plant that only grows up to 12 inches tall. It has a cluster of small white or pink flowers that bloom in the summer. The leaves are pinnately-lobed, meaning they have several small leaflets that help give the plant a feathery appearance. The most distinctive feature of this plant, however, is its small spherical fruits, which are about the size of a pea and give the plant its common name.
Light Requirements
Nasturtium sphaerocarpum Gray typically requires full sun to partial shade. It grows best when exposed to bright light for at least six hours a day. Insufficient light can cause the plant to grow poorly and may even result in the death of the plant.
Temperature Requirements
The best temperature range for Nasturtium sphaerocarpum Gray is between 60°F and 75°F (16°C and 24°C). Extreme heat can cause leaves to wither and the plant to wilt. Frost, on the other hand, can also damage the plant, so it is best to keep it in a warm and sheltered location during winter.
Soil Requirements
The plant prefers well-draining soil that is rich in organic matter and has a slightly acidic pH between 6.0 and 6.5. It can grow in a range of soil types, including loam, sand, and clay, but it will not tolerate waterlogged soil. If the soil is too heavy or compact, it may be necessary to amend it with organic matter, such as compost or peat moss, before planting.
Cultivation methods
Nasturtium sphaerocarpum Gray, commonly known as Globe-podded Watercress, is a plant species belonging to the mustard family. It is a perennial plant that thrives in moist soil and can be cultivated both indoors and outdoors. To cultivate this plant, start by selecting a suitable location with partial shade and nutrient-rich soil. You can propagate it from seeds or cuttings and ensure the soil is always moist.
Watering needs
Nasturtium sphaerocarpum Gray requires consistently moist soil to thrive. Water the plant regularly, ensuring the soil remains moist. However, avoid overwatering as it can lead to root rot. You can check if the soil is moist by sticking your finger about an inch deep into the soil. If it feels dry, add water.
Fertilization
Apply fertilizer to Nasturtium sphaerocarpum Gray during growing seasons. You can use organic fertilizers like compost or inorganic fertilizers recommended for flowering plants. Apply fertilizer every four to six weeks throughout the growing season to promote healthy growth. Follow the package's instructions on the amount to apply to avoid over-fertilizing, which can damage the plant.
Pruning
Pruning Nasturtium sphaerocarpum Gray encourages healthy growth and ensures the plant looks neat and tidy. It is best to prune it in spring before new growth starts. Clip off all dead or diseased leaves, stems, and flowers. Cut back overgrown stems to the nearest node to promote bushier growth. Doing this will ensure the plant has ample space to grow and adequate nutrients to thrive.
Propagation of Nasturtium sphaerocarpum Gray
Nasturtium sphaerocarpum Gray, also known as globe-podded watercress, is a flowering plant that is native to North America. This plant is commonly grown for its edible leaves and seeds, as well as for ornamental purposes. Nasturtium sphaerocarpum Gray can be propagated through several methods, including seed propagation and vegetative propagation.
Seed propagation
The easiest and most common method to propagate Nasturtium sphaerocarpum Gray is from seeds. Seeds can be collected from mature plants and kept in dry storage until ready for planting. Seeds should be planted in the spring or early summer in well-draining soil, about 1/4 to 1/2 inch deep. Seeds can be planted directly in the ground or started indoors in pots or trays. It is important to keep the soil moist but not waterlogged during the germination process, which can take up to two weeks.
Vegetative propagation
Nasturtium sphaerocarpum Gray can also be propagated through vegetative means, such as division or stem cuttings. Division involves digging up a mature plant and dividing the root clumps into smaller sections, each with a healthy stem and root system. These sections can be replanted in well-draining soil and kept moist until new growth appears. Stem cuttings can be taken from healthy plants during the growing season and planted in a well-draining soil mixture. Cuttings should be kept moist until roots have formed and new growth appears, which can take several weeks.
Disease and Pest Management for Nasturtium sphaerocarpum Gray
Nasturtium sphaerocarpum Gray is a beautiful flowering plant that can add color and vibrancy to your garden. However, like all plants, it is susceptible to various diseases and pests. Here are some of the most common problems and how you can manage them.
Diseases
1. Powdery mildew: This fungal disease can cause leaves to become covered in white powdery patches. It can be treated with a fungicide, but it's often best to prevent it by ensuring good air circulation around your plants.
2. Leaf spot: This bacterial or fungal disease can cause brown spots to appear on the leaves. To prevent it, avoid overcrowding and water the plants from the base instead of from above. If your plants are affected, remove any diseased leaves and treat the plant with a fungicide.
3. Root rot: This disease is caused by overwatering or poor drainage and can cause the roots to rot. To prevent it, ensure that the soil is well-drained and avoid overwatering. If your plant is affected, remove any diseased roots and replant in fresh soil.
Pests
1. Aphids: These small insects can suck the sap from the plant and cause it to become stunted or distorted. They can be treated with insecticidal soap or by introducing natural predators like ladybugs.
2. Slugs and snails: These pests can eat holes in the leaves and flowers. To prevent them, keep your garden free of debris and apply a slug and snail bait. You can also create barriers around your plants using copper tape or sharp mulch.
3. Caterpillars: These larvae can eat the leaves and flowers of your plants. To prevent them, handpick them off your plants or use an organic caterpillar-specific insecticide.
By following these tips, you can ensure that your Nasturtium sphaerocarpum Gray stays healthy and beautiful.
