Rumex sanguineus — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Rumex sanguineus

Rumex Sanguineus

Updated · 1,403 observations
Photo · (c) emmahanlon, some rights reserved (CC BY-NC) COURTESY INATURALIST
ON THIS PLANT

Rumex sanguineus, commonly known as wood dock, bloody dock or red-veined dock, is a perennial flowering plant species in the family Polygonaceae. Rumex sanguineus is a dicot and can be observed in Europe with at least two varieties.

A note from PlantMom

Redvein dock has moderate resistance to disease but can be vulnerable to problems like leaf spot. Its sensitivity to insect pests depends on the variety, though most types are not highly pest-resistant. For care, Redvein dock needs consistent watering and fertilization, and yellow leaves should be pruned often. It is important to control pests and diseases when they arise and to harvest the plant promptly. Redvein dock is appropriate for people who can dedicate some time and effort to regular maintenance.

— PlantMom
CARE GUIDE

How to keep Rumex Sanguineus.

Light

Redvein dock does best in full sun and can tolerate locations with moderate sunlight. Native to brightly lit habitats, it depends on sunlight for healthy growth. However, excessive or insufficient sun exposure can adversely affect its growth.

Water

Redvein dock thrives in consistently moist soil and benefits from regular watering, ideally once a week. Although it can endure short dry periods, rainwater is particularly beneficial because it provides an ideal pH balance and essential nutrients for its growth as an herbaceous perennial.

Temperature

Redvein dock is native to moderate climates and does best in conditions where temperatures range from 68 to 95 °F (20 to 35 ℃). For optimal growth, make seasonal temperature adjustments as needed to keep it within that range.

Fertilizer

To maximize the yield and flavor of Redvein dock, provide plenty of nitrogen throughout the entire growth period, from pre-planting through harvest. Well-watered, well-fertilized plants develop abundant, healthy leaves and have reduced bitterness. Before planting, improve the soil with organic matter such as compost or manure, ideally 2 to 8 weeks ahead of time.

Pruning

Redvein dock features striking veined leaves that add beauty to any garden. To ensure healthy growth and prevent legginess, it's best to prune the plant from early to late spring. Regularly trim any damaged leaves and spent flower stalks to encourage more blooms. Following these practices will help maintain a healthy and attractive redvein dock.

Pot & Repot

When repotting Redvein dock, choose a pot 1-2 inches (2.5–5.1 cm) larger with ample drainage. Use a well-draining potting mix. Repot in spring or fall, making sure the root ball sits slightly below the rim of the flower pot. Water thoroughly after repotting and place in a warm spot with indirect sunlight.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial, Annual
Genus
Rumex
Family
Polygonaceae
Hardiness Zone
4-9
Mature Height
30 cm to 46 cm
Mature Spread
30 cm to 46 cm
Leaf Color
Green, Red
Leaf Type
Deciduous
Flower Color
Green, Red
Flower Size
2.54 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring
Harvest Time
Mid summer
Native Area
Turkey, Sweden, Austria, Slovakia, Montenegro, Croatia, Slovenia, Belarus, Russia, Germany, Romania, Belgium, Netherlands, France, Czech Republic, Bulgaria, Armenia, Poland, Greece, Ukraine, Serbia, Norway, Italy, Spain, Switzerland, Denmark, Iran, Albania, Ireland, United Kingdom, Hungary, Azerbaijan
ALSO KNOWN AS

Other names.

en Wood Dock en Red Veined Sorrel en Redvein dock en Bloodwort dock en Red-veined dock en Bloody dock en Bloodvein Sorrel en Blood-veined Rumex
FREQUENTLY ASKED

Reader questions.

How should I water my Redvein dock plant?

The Redvein dock has specific preferences for its water supply, including how much water it receives and how it is provided. If you don't use the right watering technique, it could harm your tomatoes. The recommended method for watering Redvein dock is to apply water directly to the soil in a slow and gentle manner. Avoid pouring all the water at once or doing overhead watering for your Redvein dock. While watering slowly, make sure to water deeply to ensure adequate moisture throughout the soil your Redvein dock is growing in.

Why should I use fertilizer on my Redvein dock plant?

Redvein dock, grown for its edible leaves, has specific nutrient requirements, just like any other plant. The essential nutrients for plants, such as nitrogen, phosphorus, and potassium, serve various important functions. In the case of foliage, nitrogen is especially crucial. However, it is challenging for Redvein dock to obtain sufficient nitrogen from the soil alone to produce a bountiful harvest. This is why many gardeners choose to supplement by providing the plant with additional nitrogen through feeding.

What are the sunlight requirements for Redvein dock?

Redvein dock requires full sun exposure, characterized by more than 6 hours of sunlight daily, to thrive best. It can also endure in partial sun, which is about 3-6 hours of sunlight. Observing the movement of sunlight through your garden is crucial to find the perfect spots that offer the right balance of light and shade, ensuring the plant's growth and happiness.

What is the native climate for Redvein dock?

Redvein dock, scientifically known as Rumex sanguineus, is native to moderate climates. It thrives in environments with temperatures ranging between 68 to 95 °F (20 to 35 °C). This plant prefers relatively warm temperatures and for optimum growth, it's crucial to maintain the temperature within this range. Adjustments may be necessary seasonally to ensure the temperature stays within the optimal range, especially to keep it above 20°C during colder months. It's important to prevent the temperature from dropping below freezing to avoid damage to the plant. In regions where the outdoor temperature approaches -5°C (25°F) during winter, it's advisable to bring Redvein dock indoors or provide protection with a temporary greenhouse or through wrapping the plant with plastic film or fabric.

What do I do if I give my Redvein dock too much or too little water?

If you realize that you have given too much water to your Redvein dock and are worried about the risk of disease, it's important to take immediate action. Typically, the best solution for an overwatered Redvein dock is to remove it from its current spot. Once you have taken the plant out of the ground, you can let its roots dry out a little before planting it in a new location. Make sure the new spot has soil that drains well. If you are growing the plant in pots, you might also consider switching it to a pot with better drainage by having more or larger holes. On the other hand, if you have been underwatering your plant, all you need to do is water it more frequently.

When should I fertilize my Redvein dock plant?

To ensure optimal growth for your Redvein dock, there are several key moments throughout the growing season when you should apply fertilizer. The first application should take place when you're preparing the soil for planting, ideally 2 to 8 weeks beforehand. It's crucial to thoroughly amend the soil during this step, using nutrient-rich organic materials like compost or manure. You'll want to repeat this soil amendment process again at the time of planting, following the same method. Once your seedlings have emerged and reached approximately 2 inches in height, it's time for the next round of fertilizer. From there, you can continue to regularly feed your Redvein dock with either rich organic matter or commercial fertilizer until it's time to harvest. It's generally recommended to fertilize every two to three weeks. Additionally, applying a layer of compost or manure around the plant can provide a continuous supply of nutrients.

How does artificial lighting benefit indoor Redvein dock plants?

Artificial lighting is essential for Redvein dock plants growing indoors, especially when natural sunlight is insufficient. During winter or in spaces that receive less sunlight, artificial lights, such as LED, can be customized to provide specific wavelengths needed by plants, promoting faster, healthier growth. Full sun plants need 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant, mimicking natural sunlight for about 8-12 hours per day to ensure optimal growth.

How does low temperature affect Redvein dock and what are the solutions?

Redvein dock has a moderate tolerance to low temperatures, thriving best when temperatures are between 20°C and 35°C, and it should be kept above 0°C during winter. Exposure to temperatures below -30°C can cause the leaves to darken and in severe cases lead to water-soaked necrosis, wilting, and drooping, with the leaves gradually turning brown. To mitigate frost damage, trim away frost-damaged parts and immediately move the plant to a warm environment or set up a makeshift greenhouse for protection. If the plant is moved indoors, it should be placed near a south-facing window to ensure it receives ample sunlight, or supplemental lighting can be used if natural light is insufficient.

How regularly do I need to water my Redvein dock plant?

Redvein dock needs a lot of water during the growing season. To meet this need, you should water it frequently in the spring and summer. Start by watering once or twice a week early in the season, and increase the frequency as the season progresses. In summer, you may need to water it twice a day or more, depending on the weather. Once your Redvein dock has completed its major growth phases, you can reduce watering to once a week until the end of the growing season.

When is the best time to not fertilize my Redvein dock?

When using nitrogen-rich fertilizers, be cautious about using them near vegetable plants that need energy for fruiting instead of foliage growth. Applying nitrogen-rich fertilizers near these plants can result in excessive leaf production and fewer vegetables. To prevent damage, avoid allowing any type of fertilizer to come into contact with or splash onto the leaves of your Redvein dock. Instead, apply the fertilizer a few inches away from the plant's base. If your Redvein dock is already unhealthy due to disease, pests, drought, or other factors, it is advisable to resolve those issues before fertilizing. While fertilizer can benefit healthy plants, it can actually harm plants that are already in poor condition.

What are the symptoms of insufficient light in Redvein dock?

When Redvein dock is grown indoors or under insufficient light, it may exhibit symptoms such as smaller new leaves, leggy or sparse growth, faster leaf drop, halted or no new growth, lighter-colored new leaves, and issues such as chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms can indicate a need for increased sunlight exposure or the use of artificial lighting to meet the plant's light requirements.

What are the impacts of high temperature on Redvein dock and how can they be addressed?

During summer, it's essential to ensure that temperatures do not exceed 35°C for Redvein dock. Exposure to temperatures above 38°C slows down the plant's growth, lightens the color of its leaves, and increases susceptibility to sunburn. To address issues of high temperature, sunburned and dried-up parts should be trimmed away. Moving the plant to a shaded location, especially away from the harsh afternoon sun, along with watering the plant in the morning and evening can help maintain soil moisture and protect the plant from heat stress.

ALSO IN THE LIBRARY

You might also like.