Dre Campbell Farm
Good and Bad Rhubarb Companion Plants

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Good and Bad Rhubarb Companion Plants

If you want to get the most out of your land, you do not need to limit yourself to planting only rhubarb in your garden.

Many vegetables and herbs grow well with rhubarb. Still, rhubarb does not thrive with some plants, such as melons, cucumbers, and dock.

Interested in learning which plants work well with rhubarb and which do not? If that is the case, continue reading.

What to Plant with Rhubarb

Even though certain plants are incompatible with rhubarb, others are compatible.

Below is a list of good companion plants for rhubarb.

  • Cauliflower
  • Kohlrabi
  • Raspberries
  • Cabbage
  • Garlic
  • Roses
  • Columbine
  • Horseradish
  • Strawberries
  • Beans
  • Kale
  • Asparagus
  • Onions
  • Turnips
  • Chives
  • Broccoli

These crops benefit each other in some way: they repel pests, improve soil nutrients, attract beneficial insects, and more.

Bad Companion Plants for Rhubarb

Let’s find out which plants aren’t good with rhubarb and why. Here’s what not to plant with rhubarb:

  • Melon
  • Cucumber
  • Blueberries
  • Pumpkin
  • Sunflowers
  • Thistles
  • Black walnut
  • Tomatoes
  • Dock

Some plants share the same nutrients as rhubarb and/or may compete for space. Some may also attract harmful insects, while others have different sunlight requirements.

Can you plant rhubarb near potatoes? They both have similar sunlight and nutrient requirements. Therefore, they may compete.

How to Grow Rhubarb

You can grow rhubarb from seed, but the best way to start a new plant is to plant crowns.

When the right conditions are met, any crown piece can grow. Prepare the soil by adding a lot of organic matter and allowing plenty of space between each plant.

Additionally, it is best to plant in the spring in a place with a lot of sunlight. Plant them in well-drained soil.

It’s also important to water well and apply a top layer of mulch in the fall.

When rhubarb gets used to its new home and starts growing well, it won’t need to be watered as much and can withstand arid weather. This is because it has many roots that go down into the soil.

Cover the plant’s crown in January or February to prevent light from reaching it. This will force the plants to produce new growth. After that, you may resume harvesting in late April.

Furthermore, remove the flower stalks from your rhubarb plants as soon as they appear. If not, this will drain the plants’ energy.

Care and Maintenance

One of the best things about rhubarb is that it is a low-maintenance plant. It will also come back every year.

Allow a year for your new or split rhubarb plants to establish. Additionally, keep the soil surrounding the plants wet but not saturated. After the first year, the plants will be mature enough for you to pick the stalks.

In early June, mature rhubarb plants will send up tall flower stalks with tight clusters of buds that bloom.

You may let it blossom if you like, but if you want a substantial rhubarb crop, remove the flower stalks. As mentioned, the plant will use up energy that could be used to make stalks or roots if it is allowed to go to seed.

So, remove the flower stalks as soon as they appear. This allows the plant to direct its growth energy toward the stems.

Additionally, mulch heavily with a thick layer of straw to keep the soil moist and weeds out. Your plants also need consistent watering.

Overcrowding is also a common problem with rhubarb and can reduce its growth. So, split the roots every 6 to 10 years [1].

Remove all plant waste in the fall. Furthermore, add an all-purpose garden fertilizer to the soil in the fall. This will help the plants grow well in the spring.

Pests and Diseases

Garden pests that bother rhubarb include grubs, cutworms, beetles, slugs, and snails. Additionally, crown rot and gray mold are plant diseases that affect these plants [2].

Harvesting

Wait until two years after planting before harvesting. Never pick any rhubarb in its first year of growth. Let it grow and mature first.

Once the stalks are at least 10 inches long, pull them away from the plant with your hands. But do not harvest all the stalks at once.

Take off the entire stem by twisting it off and pulling upward from the base. Next, cut off the leaves, but do not eat them. The leaves are toxic to humans [3], but you can put them in the compost.

You may use the fleshy stalks in various dishes, including salads, desserts, and dinners.

Where to Buy Seeds

To start your plants from seed, you’ll need good seeds. There are a lot of varieties to choose from.

However, there are reputable online stores that sell high-quality organic seeds and bare roots. You can also check with local seed stores.

Takeaway 

What grows for a long time, doesn’t have many pests, and is very easy to grow? It is rhubarb. You can use the stems of this plant all year to make tart and flavorful pies and sauces.

Plant in the late fall or early spring, when the soil can be worked. Grow with care alongside good plant companions, and you will enjoy a good harvest.

Andre Campbell

Andre is an organic farmer and co-founder of Dre Campbell Farm. He appreciates everything in nature—sunshine, plants, animals, and human life.

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