Artemisia Absinthium

When watering the Common wormwood, it is recommended to use filtered water at room temperature. Tap water may contain harmful particles, so filtered water is preferred. The water temperature should be at room temperature or slightly warmer since the Common wormwood is accustomed to a warm environment and cold water can be a shock to its system. It is best to avoid overhead watering for this plant as it can cause leaf problems. Instead, apply filtered room temperature water directly to the soil until it is completely soaked. This is highly beneficial for the plant as it hydrates the roots and allows them to spread through the soil and absorb necessary nutrients.

The main structure of the Common wormwood is composed of its leaves. Fertilization is crucial for maintaining the appearance and functionality of these leaves. By fertilizing properly, you can ensure that your Common wormwood has vibrant color and a healthy texture in its leaves. Additionally, fertilization also promotes the growth of new roots and preserves existing ones below the surface of the soil. This not only contributes to the current health of your plant, but also enhances its ability to absorb nutrients from the soil in the future.

Common wormwood thrives in locations with plenty of sunlight, preferring full sun conditions (above 6 hours of sunlight) but can adapt to partial sun (about 3-6 hours of sunlight) if necessary. It's important to watch how sunlight moves through your garden to place plants in spots with the ideal balance of light and shade, ensuring their growth and health. Artificial lighting can also be used for indoor plants when natural sunlight is insufficient. LED lights, which offer customizable wavelengths, are effective for providing the necessary light, with full sun plants requiring 30-50W/sq ft, partial sun plants needing 20-30W/sq ft, and full shade plants needing 10-20W/sq ft.

Common wormwood, native to temperate regions, thrives in a wide temperature range from 41 to 95°F (5 to 35°C), but prefers temperatures between 59 to 77°F (15 to 25°C). During colder seasons, maintaining a temperature between 50 to 58°F (10 to 14°C) is suggested, while in warmer seasons, a temperature range of 77 to 86°F (25 to 30°C) is optimal. Common wormwood exhibits strong cold resistance, so special frost protection measures are typically not necessary. However, if temperatures are expected to drop significantly below the growth limit, it's crucial to provide cold protection by covering the plant with soil or straw and watering it abundantly before the first freeze to ensure the soil remains moist, preventing drought and water scarcity during winter and early spring.

Overwatering is a common problem for the health of Common wormwood, while underwatering is less common. Overwatering can cause wilting, yellowing, and diseases like root rot, mold, and mildew that can kill the plant. Underwatering is possible but less likely, causing brittle and brown leaves. It's important to recognize signs of overwatering early because some diseases like root rot can't be reversed if not addressed promptly. Reduce watering and check the soil's drainage. If it drains poorly, replace it with a well-draining mix. If underwatering is suspected, simply increase watering until signs improve.

If you grow your Common wormwood outdoors, it will send out new growth in early spring. This is your cue to start fertilizing for the year. Usually, one application of fertilizer is sufficient. However, if you want to maximize its growth, you can feed it multiple times during spring and early summer. In this case, feed it about once every month to a month and a half.

Symptoms of insufficient sunlight in common wormwood include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, and conditions such as chlorosis, sunscald, leaf curling, wilting, and leaf scorching. To address these issues, gradually increase the plant's sunlight exposure, move it closer to a south-facing window for at least 6 hours of direct sunlight daily, and consider using artificial light if the plant is large or immobile. For outdoor plants, shifting them to sunny spots gradually helps, and for ground plants, reducing obstructions or transplanting them to sunnier locations can improve sunlight access. It's crucial to avoid sudden changes in light exposure to prevent sunburn.

Common wormwood is quite cold-tolerant, performing best when temperatures are kept above its suitable growth minimum. During winter, it's essential to keep the temperature above its tolerable growing minimum. If temperatures fall below the growth limit, there might not be noticeable changes during winter; however, a decrease in sprouting or even a complete lack of sprouting might occur in spring. The solution for spring, in case some parts have failed to sprout due to low winter temperatures, is to remove any such parts to promote healthier growth.

If your Common wormwood plant is potted, the best way to check if it needs water is to stick your finger in the soil. If you find that the top two to three inches of soil are dry, then it's time to water it. The same method can be used if you have your Common wormwood planted in the ground outdoors. Once again, if the top few inches of soil are dry, it's time to water. Typically, during spring and early fall, you'll need to water this plant about once a week using this method. However, in very hot weather, you may need to water it twice or more per week. It's worth noting that mature and well-established Common wormwood plants have an impressive ability to withstand drought.

During the late fall and winter, your Common wormwood will go into a dormant phase and stop producing new growth. It is important to avoid fertilizing your Common wormwood during this time. In spring and summer, if you choose to fertilize multiple times, gradually reduce the amount of fertilizer as summer approaches, since the growth rate of your Common wormwood will also slow down. It is never a good idea to fertilize your Common wormwood when the weather is unusually hot or the soil is extremely dry, as this can stress the plant and cause it to die prematurely.

During summer, it's vital to ensure that common wormwood is kept below its suitable maximum growth temperature. Exceeding the tolerable growing maximum temperature can cause the leaves to lighten in color, become prone to curling, susceptible to sunburn, and in severe cases, lead to the plant wilting and drying out. To mitigate these issues, trim away the sunburned and dried-up parts of the plant. It's advisable to move the plant to a location that provides shade during the midday and afternoon sun or to use a shade cloth. Additionally, watering the plant in the morning and evening helps keep the soil moist and the plant healthy.

When watering your Common wormwood, don't hold back on the amount of water you give. Make sure the first two to three inches of soil are dry, then water the plant thoroughly, soaking the soil completely. Add enough water so that it flows through the drainage holes at the bottom of the pot. If you don't see excess water draining, it means you haven't watered enough. However, be careful not to let water accumulate in the soil, as this can harm the plant. On the other hand, if water is not draining well, it could indicate poorly draining soil, which is bad for the plant's health. If the plant is outside, one inch of rain per week is sufficient.