Bad Companion Plants for Rhubarb

Oleh Anonymous April 01, 2021 Post a Comment

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Rhubarb is a popular garden plant known for its tart, flavorful stalks that are used in a variety of culinary dishes. But did you know that rhubarb has specific companion planting requirements to ensure healthy growth and maximum yield? In this article, we'll explore which plants should not be grown alongside rhubarb, as they may negatively impact its growth and health.

Why Companion Planting Matters for Rhubarb

Companion planting involves strategically planting different types of plants together to create a mutually beneficial environment. Certain plants can enhance each other's growth, ward off pests, and improve soil quality. However, some plants can have a negative effect on others, and this is particularly true for rhubarb.

Rhubarb is prone to a fungal disease called crown rot, which can cause the plant to wilt and die. To prevent this, it's essential to avoid planting certain crops near rhubarb that can exacerbate the risk of infection. Here are some of the worst companion plants for rhubarb:

Worst Companion Plants for Rhubarb

1. Tomatoes

Tomatoes are a popular garden crop, but they should not be planted near rhubarb. Both plants require similar nutrients from the soil, and planting them together can lead to nutrient depletion and stunted growth. Additionally, tomatoes attract pests such as nematodes, which can damage the roots of the rhubarb plant.

2. Potatoes

Like tomatoes, potatoes also attract pests that can harm rhubarb, such as potato beetles and wireworms. In addition, potatoes require a lot of nitrogen from the soil, which can leave rhubarb without enough nutrients to thrive.

3. Cucumbers

Cucumbers are a vining plant that can quickly overtake nearby plants, including rhubarb. They also attract cucumber beetles, which can spread bacterial wilt disease to other crops in the garden.

4. Squash

Squash plants have large leaves that can shade out and overcrowd nearby plants, including rhubarb. In addition, squash bugs can damage the roots and leaves of rhubarb, making it vulnerable to fungal infections.

5. Sunflowers

Sunflowers are known for their tall stalks and large flowers, but they should not be planted near rhubarb. Their thick roots can compete with rhubarb for nutrients and water, while their dense foliage can block out sunlight and stunt the growth of the rhubarb plant.

Other Factors to Consider When Companion Planting with Rhubarb

In addition to avoiding these bad companion plants, there are other factors to consider when planting rhubarb in your garden. Here are some tips:

1. Keep Rhubarb Away from Trees

Rhubarb prefers well-draining soil that is rich in organic matter. It's best to avoid planting rhubarb near trees, as their roots can compete for nutrients and water. Additionally, trees can cast shade over the rhubarb plant, which can negatively impact its growth.

2. Plant Rhubarb in Full Sun or Partial Shade

While rhubarb needs some shade to prevent its leaves from scorching, it also requires plenty of sunlight to grow and produce healthy stalks. Plant rhubarb in an area that receives at least six hours of direct sunlight each day.

3. Avoid Overcrowding

Rhubarb plants should be spaced at least three feet apart to allow for adequate air circulation and prevent fungal infections. Additionally, avoid overcrowding nearby plants, as this can lead to competition for resources and stunt the growth of all the plants involved.

4. Consider Companion Plants That Benefit Rhubarb

While there are some plants to avoid when companion planting with rhubarb, there are also several crops that can enhance its growth and health. For example, beans, peas, and spinach are all nitrogen-fixing plants that can improve soil quality and provide essential nutrients to nearby crops.

FAQs

Q1: What is crown rot, and how does it affect rhubarb?

A: Crown rot is a fungal disease that affects the roots and crowns of rhubarb plants. It can cause wilting, yellowing of leaves, and eventually death of the plant. To prevent crown rot, avoid overwatering and ensure good drainage in your garden soil.

Q2: Can I plant herbs near rhubarb?

A: Yes, many herbs make great companion plants for rhubarb. Mint, chamomile, and chives are all known to repel pests and promote healthy growth in nearby crops.

Q3: How often should I fertilize my rhubarb plants?

A: Rhubarb plants require regular fertilization to thrive. Apply a balanced fertilizer (such as 10-10-10) in early spring and again after the plant has finished producing fruit.

Q4: Can I plant rhubarb in containers?

A: Yes, rhubarb can be grown in large containers as long as they have adequate drainage and enough space for the roots to grow. Choose a container that is at least 24 inches in diameter and 18 inches deep.

Q5: When is the best time to harvest rhubarb?

A: Rhubarb can be harvested when the stalks are at least 10 inches long and have a thick, firm texture. It's best to wait until the second year after planting before harvesting, to allow the plant to establish itself fully.

Companion planting is an essential aspect of successful gardening, especially when it comes to growing crops like rhubarb. By avoiding these bad companion plants and following the tips outlined in this article, you can ensure healthy growth and maximum yield from your rhubarb crop.