Rumex bucephalophorus, also known as horned, red, or ruby dock is an annual herbaceous plant that is part of the family Polygonaceae. The scientific name Rumex bucephalophorus was first described and published by Linnaeus in 1753 in Species Plantarum. Other scientific names have also been given to Rumex bucephalophorus such as Bucephalophora aculeata and Lapathum bucephalophorum. R. bucephalophorus is most commonly found in subcoastal or coastal regions, but also are "casual aliens", few and far between, among inland populations. Rumex bucephalophorus is native to the Mediterranean Basin and grows best in areas with little human intervention.
Red dock has strong disease resistance and is generally unlikely to develop illnesses. However, it can be affected by pests and diseases present in its environment. These infections are usually mild. For care, this plant requires a moderate level of maintenance. It should be pruned regularly to keep a good appearance and healthy growth. Fertilizing can also help encourage flowering. Red dock is appropriate for anyone with outdoor space, such as a garden or patio, and does not demand much experience in plant care. It may need more attention when grown indoors.
How to keep Rumex Bucephalophorus.
Light
Red dock is a sun-loving herbaceous perennial that originates from open habitats and commonly thrives in meadows and grasslands. It prefers full sun but can also tolerate partial sun.
Water
Red dock is a plant native to temperate regions and thrives in environments with moderate moisture levels. It requires consistently moist soil but should not be waterlogged. Watering once a week is usually sufficient to keep it healthy. Typically grown outdoors, red dock is quite resilient throughout the growing season. It can adapt to varying amounts of rainfall while continuing to grow vigorously.
Temperature
Red dock can tolerate a wide range of temperatures, but its distribution may still be restricted by different combinations of moisture and heat. It does best in warm summer climates with sufficient rainfall or irrigation. Long stretches of cloudy, rainy weather, as well as extended high temperatures, can raise the risk of Red dock dying. In winter, protecting the plant from cold can boost its survival rate.
Fertilizer
A single application of fertilizer in spring is generally adequate for Red dock, though multiple feedings can boost growth. Feed once a month to every six weeks. Fertilization improves leaf appearance and function, helping maintain even color and a healthy texture. It also encourages root development and nutrient uptake, supporting the plant's long-term health.
Pruning
Red dock requires minimal pruning. To encourage new growth, remove dead stems in early spring. Light trimming after blooming helps prevent self-seeding and promotes fuller growth. Making clean cuts just above the leaf nodes helps manage size and improve air circulation, which reduces the risk of disease.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Rumex
- Family
- Polygonaceae
- Hardiness Zone
- 7-10
- Mature Height
- 5 cm to 49 cm
- Mature Spread
- 15 cm to 30 cm
- Leaf Color
- Green, Olive Drab
- Leaf Type
- Deciduous
- Flower Color
- Red, Orange
- Flower Size
- 0.20 cm to 0.51 cm
- Bloom Time
- Spring
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late spring, Early summer, Mid summer
- Native Area
- Libya, Turkey, Tunisia, Italy, Portugal, Spain, Israel, Cyprus, Albania, Algeria, Greece, Morocco, France
Other names.
Reader questions.
How should I water my Red dock plant in the best way?
When watering the Red dock, it's important to use filtered water at room temperature. Tap water may have harmful particles that can affect the plant's health. The Red dock prefers warmer water because it is native to a warm environment and cold water can be a shock to its system. It's best to avoid overhead watering as it can cause problems with the plant's foliage. Instead, simply water the soil with the filtered room temperature water until it is completely soaked. This helps the roots to spread through the soil and collect the necessary nutrients.
What are the sunlight requirements for Red dock?
Red dock requires full sun conditions, which means it needs above 6 hours of sunlight per day to thrive. However, it can also tolerate partial sun, requiring about 3-6 hours of sunlight. It's essential to watch how sunlight moves through your garden to find spots that offer the perfect balance for your plants. Red dock, being a sun-loving perennial herbaceous plant, originates from open habitats and often thrives in meadows and grasslands, making its sunlight preferences crucial for optimal growth.
What should I do if I give my Red dock too much water or too little?
Both overwatering and underwatering can harm your Red dock, but overwatering is more common. When this plant gets too much water, its stems and leaves can wilt and turn yellow. Overwatering for a long time can also cause diseases like root rot, mold, and mildew, which can kill the plant. Underwatering is less likely, as the Red dock can tolerate drought well. However, it can still happen, and in that case, the leaves may become brittle and brown. It is important to spot signs of overwatering early when taking care of your Red dock. Some diseases caused by overwatering, like root rot, may not be fixable if you wait too long. If you notice early signs of overwatering, reduce watering immediately. It's also a good idea to check if the soil drains poorly; if so, replace it with a loose, well-draining potting mix. On the other hand, if you see signs of underwatering, simply water more regularly until the signs go away.
Can artificial lighting be used for Red dock, and if so, how?
Yes, artificial lighting can be used for Red dock, especially when natural sunlight is insufficient, like in winter or in less sunny spaces indoors. Adequate lighting promotes faster, healthier growth. LED lights are recommended for their ability to provide specific wavelengths of light needed by plants. For full sun plants like Red dock, 30-50W/sq ft of artificial light is advised, with the light source placed 12-36 inches above the plant to mimic natural sunlight. The duration of light exposure should mimic natural daylight hours, typically 8-12 hours per day for most plants.
How many times should I water my Red dock?
If your Red dock plant is in a pot, you can determine if it needs water by inserting your finger into the soil. If the top few inches of soil are dry, it's time to water it. For Red dock plants grown in the ground, you can use the same method to test the soil. Once again, if the top few inches are dry, add water. During spring and early fall, watering once a week is usually sufficient. However, during extremely hot weather, you may need to water twice or more per week. It's worth noting that mature, well-established Red dock plants have a strong ability to withstand drought.
What are some common symptoms of light deficiency in Red dock?
When exposed to inadequate lighting, Red dock may exhibit symptoms such as smaller new leaves compared to previous ones, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored new leaves. Other symptoms include chlorosis, where leaves lose their green color and turn yellow, sunscald resulting from intense sunlight exposure, leaf curling as a defense mechanism against excessive sunlight, wilting due to increased water loss, and leaf scorching characterized by brown, dry edges on leaves.
How much water does my Red dock require?
To properly water your Red dock, make sure you are generous with the amount of water you give. Wait until the top two to three inches of soil are dry before watering, and then give the plant a thorough soaking. It's important to add enough water so that it completely saturates the soil and excess water flows out of the drainage holes at the bottom of the pot. If you don't see any excess water draining, it means you haven't given enough water. 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 properly, it could indicate that the soil is not draining well, which is not good for the plant's health. Lastly, if the plant is outdoors, one inch of rain per week should be enough.
What solutions can help Red dock thrive in proper lighting conditions?
To ensure Red dock receives proper lighting, gradually move the plant to a sunnier location each week until it achieves at least 6 hours of direct sunlight daily. Utilize south-facing windows and keep curtains open during the day. If the plant is large or not easily movable, consider using artificial lighting, such as desk or ceiling lamps for at least 8 hours daily or invest in plant grow lights. For outdoor plants, avoid sudden changes in light intensity to prevent sunburn. If sunlight is obstructed, consider pruning trees or transplanting smaller plants to locations with ample sunlight and good drainage. Note that parts of the plant affected by insufficient sunlight may not recover, but new growth will be healthy with increased light exposure.
How do I water my Red dock as it grows?
The water requirements of the Red dock can change depending on its growth stages. When the Red dock is young or recently transplanted, it needs more water than usual. This is because it is focused on growing new roots to support future growth, and these roots need more moisture. After a few seasons, the Red dock will require less water. Another stage where it may need more water is during the bloom period, as the flowers development requires a significant amount of moisture.
How should I make sure my Red dock always has enough water no matter the season?
The Red dock will have its highest water needs in the hottest months. During summer, you may need to water this plant more than once per week, depending on how quickly the soil dries. However, during winter, the plant enters a dormant phase and requires significantly less water. In fact, you may not need to water it at all during winter. If you do decide to water, it should be done no more than once per month. Excessive watering during this time can increase the chances of the plant getting diseased.
What's the difference between watering my Red dock inside and outside?
The Red dock is commonly grown indoors by gardeners who don't live in temperate or tropical regions. If you're growing it in a container, keep in mind that the soil can dry out faster compared to ground soil. Drying elements like air conditioning units may also make your Red dock need more frequent watering if it's planted outside. In such cases, you might not need to water the Red dock much if you receive regular rainfall. However, if you're growing it indoors, you will need to water it more often because rainwater won't be able to soak the soil.