Lepidium didymum

There are several ways to water Lesser swine-cress. You can use a garden hose with a spray nozzle, a watering can, or any other usual watering tool. Lesser swine-cress is not very particular about how it gets watered, as it can thrive with rainwater, tap water, or filtered water. It is not advisable to water this plant from above as it can harm the leaves and flowers and may cause disease. A drip irrigation system is often the best choice for watering Lesser swine-cress as it provides even and direct water to the soil. If you have a container-grown Lesser swine-cress, you can use a cup, watering can, or tap water to water it directly into the soil.

The remedy for underwatering Lesser swine-cress is simple: water it regularly when you notice it lacks moisture. Overwatering, on the other hand, can be a more serious issue. If you don't catch it early, it can lead to diseases and the eventual decline and death of your plant. To prevent this, choose a location with plenty of sunlight and good drainage so that excess water can drain away and not saturate the soil. If your Lesser swine-cress is in a pot and you've overwatered it, you may need to transfer it to a new pot with better drainage and loose soil.

To ensure the health of your Lesser swine-cress, it requires regular watering during the growing season. In the spring, watering once a week is sufficient. However, as the season progresses and temperatures rise, you may need to increase watering to two to three times per week. It's important not to exceed this rate as it can be harmful to the plant. Regardless of the watering frequency, make sure the soil remains moist but not waterlogged. For potted Lesser swine-cress, you'll need to water more frequently as the soil in containers tends to dry out faster. Typically, watering a container-grown plant a few times per week is recommended, compared to just once per week for plants in the ground.

Determining how much water to give to your Lesser swine-cress can be done in a few ways. Some gardeners prefer to feel the soil for moisture and water until the first six inches are moist. Alternatively, you can use a set measurement like two gallons per week, adjusting based on temperature and soil dryness. However, be cautious not to overwater if your plant needs less. For container-grown Lesser swine-cress, ensure all layers of dry soil are moistened and check for moisture by sticking your finger in the soil or observing a slight trickle of excess water from the drainage holes.

Avoiding overwatering your Lesser swine-cress can be challenging because on one hand, these plants need the soil to be moistened weekly due to their deep roots. However, they are highly vulnerable to root rot and can develop browning if overwatered. Underwatering is less of a concern as these plants can survive without additional watering for some time, although they may wilt and exhibit dry leaves if deprived of water for too long.

Lesser swine-cress requires full sun, meaning it should receive above 6 hours of sunlight daily, but it can also thrive in partial sun with about 3-6 hours of sunlight. It's essential to observe the movement of sunlight in your garden to select the ideal balance of light and shade for these plants, ensuring their optimal growth and health.

Lesser swine-cress thrives in abundant sunlight, mirroring its natural habitat's conditions. While it can adapt to less continuous sun exposure, reduced light may impact its growth and health. In situations where natural sunlight is insufficient, especially indoors or during winter, artificial lighting serves as a crucial alternative. LED lights are recommended for their customizable wavelengths, with full sun plants requiring 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. Artificial lights should be placed 12-36 inches from the plant to simulate natural sunlight conditions and used for 8-12 hours per day.

When Lesser swine-cress does not receive enough light, several symptoms can appear, including smaller new leaves, leggy or sparse growth, early leaf drop, halting new growth, pale new leaves, and chlorosis (leaves turning yellow due to chlorophyll breakdown). Excessive sunlight exposure can cause sunscald (pale, bleached areas on tissue), leaf curling (to minimize water loss), wilting (from excessive transpiration), and leaf scorching (brown or crispy leaf edges). These symptoms help in diagnosing and remedying light-related issues.

For indoor plants suffering from low light, gradually move them to sunnier spots to achieve at least 6 hours of direct sunlight, using south-facing windows for maximum exposure. Artificial lighting, such as desk lamps or professional grow lights, can supplement light for larger or immovable plants for at least 8 hours a day. Outdoors, acclimating plants to increased sunlight by moving them weekly to sunnier locations can help, but avoid abrupt changes to prevent sunburn. Removing obstructions, like pruning trees, or transplanting smaller plants during their dormant period to sunnier areas with good drainage, can significantly improve their light intake. Note, parts of the plant affected by prior insufficient light may not recover, but new growth will be healthy with corrected lighting.

Lesser swine-cress thrives in moderate environments, with a temperature range ideally between 68°F to 95°F (20°C to 35°C). It has some cold tolerance and generally does not require any additional cold protection measures if the temperature stays above 0°C. However, if temperatures are expected to drop below 0°C, temporary measures such as wrapping the plant with plastic film, fabric, or other materials should be taken to protect it from the cold. It's important to remove these protective measures once temperatures rise again.

Lesser swine-cress has a moderate tolerance to low temperatures and prefers conditions above 20°C. In winter, it's important to ensure the temperature stays above 0°C to prevent damage. If temperatures fall below -10°C, the leaves may droop; in mild cases, they can recover, but in severe cases, the leaves will wilt and fall off. To protect the plant in cold weather, trim off frost-damaged parts, wrap the plant with materials like non-woven fabric, and construct a wind barrier to shield it from cold winds.

During the summer, it's crucial to keep Lesser swine-cress' temperature below 35°C. Temperatures above 41°C can cause the leaves to lighten in color, dry and wither at the tips, curl, and make the plant more susceptible to sunburn. To care for it in high temperatures, trim away sunburned and dried parts of the plant. Move the plant to a location with shade during the midday and afternoon sun or use a shade cloth. Additionally, water the plant in the morning and evening to maintain soil moisture.