Why should you not plant cucumbers near tomatoes after?

Author: Nikki King  |  Last update: Saturday, January 10, 2026

However, because they are both heavy feeders, require a lot of moisture and light, and need adequate space around them to promote healthy air circulation, they may compete. In light of this, if you want to grow cucumbers and tomatoes together, it is best to plant them 45 – 60 cm apart and in separate soil if possible.

Can you plant cucumbers after tomatoes?

Yes, cucumbers and tomatoes can be planted next to each other. They are generally compatible in the garden and can benefit from being grown together. Here are some considerations: Space Requirements: Both plants need adequate space to grow. Ensure they have enough room to spread out without overcrowding each other.

Is it OK to plant cucumbers next to tomatoes?

Tomatoes and cucumbers are enemies. Planting them together releases a substance that inhibits each other's growth. This leads to deformed flowers, fruits, and premature aging of plants. It results in significantly reduced yields.

What shouldn't you plant next to tomatoes?

1. Brassicas. Cabbage, broccoli, cauliflower, kale, Brussels sprouts, and kohlrabi can stunt the growth of your tomato plant because they out-compete them for the same nutrients. These vegetables are in the brassica family.

Can you put tomato cages around cucumber plants?

There are other vegetables in the garden that can benefit from flimsier support and grow on cages. Any type of shorter plant that likes to vine or that has tendrils will love to climb up those tomato cages. You can use tomato cages for cucumbers, pole beans, peas, or sweet potato vines.

Your Cucumber Plants Will DIE Every Time You Make This Mistake!

What not to plant near cucumbers?

Here are a few plants that do not grow well with cucumbers:
  • Pumpkin (Cucurbita)
  • Squash (Cucurbita)
  • Courgette (Cucurbita pepo)
  • Potato (Solanum tuberosum)
  • Broccoli (Brassica oleracea var. italica)
  • Cabbage (Brassica oleracea var. capitata)
  • Kale (Brassica oleracea)
  • Sage (Salvia officinalis)

Are coffee grounds good for tomato and cucumber plants?

Frequently Asked Questions. Can I use coffee grounds directly on tomato plants? Yes, however this practice is not recommended. Composting is a far superior way to use coffee grounds in the garden.

Why not plant peppers next to tomatoes?

The reality is that because the two have similar growth requirements, they can in fact be grown quite successfully together. Diseases common to both tomato and pepper include Verticillium wilt and bacterial spot.

What do you plant with tomatoes to keep the bugs away?

Top 10 Companion Plants for Tomatoes
  1. Marigolds. The bright colors and strong scent of marigolds make them an excellent deterrent against insects like tomato hornworms and aphids. ...
  2. Garlic. ...
  3. Onions. ...
  4. Lavender. ...
  5. Basil (Ocimum basilicum) ...
  6. Chives (Allium schoenoprasum) ...
  7. Asparagus. ...
  8. Celery.

What happens if you grow tomatoes too close together?

Tomato plants require a good amount of these resources, so if they're planted closely together, they will compete and likely all lose. Low Production – Even if tomato plants growing closely together survive, they may not produce as many tomatoes as they could have if properly spaced.

Can I plant cucumbers and peppers together?

Peppers and chili go well next to cucumbers, especially in a greenhouse you can plant these crops together. To prevent mildew, garlic, onions, chives, marigolds and various herbs such as basil can help.

Why do you plant cucumbers in hills?

When they are planted in raised mounds, 4 to 6 inches high, the advantage is that the soil warms up faster and drains better, and water that collects around the base encourages roots to feed more deeply. Pumpkins, squashes, cucumbers and melons are the more common vegetables planted in hills, with 4-6 seeds per hill.

Can I plant zucchini next to tomatoes?

In general, nightshade plants such as peppers, tomatoes and aubergines can be grown next to zucchinis. Just make sure that all plants have enough space, light and nutrients. However, potatoes are the exception here and are less suitable for growing next to zucchini plants.

What crop to rotate after tomatoes?

The standard rotation goes something like this: Salad (leaf) first, Tomatoes (fruit) next, carrots (roots) third and peas (legumes) after that.

How far should cucumbers be planted from tomatoes?

When planting cucumbers and tomatoes together, you must ensure there is enough room between them. Not doing this will mean the plants will compete for light, room and nutrients. 'Space individual plants 18 to 24 inches apart in rows that are spaced between 3 to 4 feet apart.

Can I plant tomatoes in the same spot every year?

Try to plant tomatoes in a different spot every year, rotating through your garden space every three to four years. Planting them in the same place allows disease pathogens that are specific to tomatoes to build up in the soil. By moving them around in the garden each year, you can break up the disease cycle.

What should not be planted near tomatoes?

11 Worst Plants to Plant with Tomatoes
  • Corn. While corn and tomatoes might seem like a great summer pairing, they're not the best companions in the garden. ...
  • Eggplant. Eggplants and tomatoes belong to the same plant family, Solanaceae, which makes them prone to similar issues. ...
  • Broccoli. ...
  • Potatoes. ...
  • Cucumbers. ...
  • Peas. ...
  • Fennel. ...
  • Dill.

What are good companion plants for cucumbers?

7 Companion Plants to Grow Alongside Cucumbers
  • Corn. You can use corn stalks as natural trellises for vining cucumbers, which is a great way to save space and maximize garden efficiency. ...
  • Dill. ...
  • Legumes. ...
  • Marigolds. ...
  • Nasturtiums. ...
  • Root vegetables. ...
  • Sunflowers.

What plants keep tomato worms away?

“Other popular companion plants that effectively deter tomato hornworms include marigolds, dill, borage, parsley, and thyme,” he says.

What is the best companion plant for tomatoes?

Basil. We think basil is maybe the MOST excellent companion plant for tomatoes. The strong smell of basil can mask tomatoes from numerous pests like thrips, aphids, and spider mites, protecting the plants. Basil can also deter tomato hornworms and armyworms.

What do peppers not like to be planted by?

Brassicas: Brassicas such as broccoli, cauliflower, and cabbage are not good companion plants for peppers as they require similar nutrients from the soil, which can lead to competition and reduced yield.

What not to plant with zucchini?

Avoid planting these vegetables in your home garden nearby your Zucchini and squash plants.
  • Fennel: Most plants dislike fennel, which has an inhibiting effect on them.
  • Potatoes: These root vegetables can deplete the soil of nutrients and starve your squash plants nearby.

How often should I put coffee grounds in my tomato plants?

How often can I put coffee grounds on my tomato plants? A sprinkling of coffee grounds mixed into the soil before planting tomatoes will not harm the plants. However, no additional coffee grounds should be added to the soil during the growing season.

Are eggshells good for tomato plants?

The eggshells will naturally decompose, and they will add calcium and nitrogen to your soil; necessary nutrients for your plants. Calcium is very good for tomatoes because it prevents blossom end rot.

Are banana peels good for tomato plants?

Banana peels are also brimming with potassium, which is excellent for plants like tomatoes, peppers or flowers. “Banana peels also contain calcium, which prevents blossom end rot in tomatoes,” the Cape Gazette adds.

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