What to Sow and Plant in June? ECO-Protection, Soil, and Mulch

Vegetable garden

In June, we plant and sow on the beds that have become available after harvesting lettuce, radishes, kohlrabi, early potatoes, and other vegetables. Taking crop rotation into account, we care for the fresh vegetable varieties we want to harvest in autumn and winter. During this time, we also harvest vegetables that we planted and sowed in early spring.

This article discusses the optimal time for sowing, planting, and replanting vegetables. You will learn where to plant or sow radicchio, endive, kale, brussels sprouts, black radish, white radish, kohlrabi, turnip, carrot, cabbage, etc. Additionally, you will learn how to strengthen tomatoes, beans, and other plants in the garden against diseases.

Preparing Garden Beds and Loosening Soil

The Quick Fork for deep loosening, without “turning” the soil.

The garden beds may be compacted by spring rain and need to be loosened. The Quick Fork is best suited for this task. With this tool, we take care of deep loosening, which is especially important for heavier (clayey, loamy) soils.

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In our garden with heavy soils, we take care of deep loosening in spring, summer, and autumn. Lighter, sandy soils also benefit from this.

It is very important to ensure a favorable ratio of air, water, and solids in the soil before planting. In such prepared soil, plant roots grow better, microorganisms thrive, and water does not run off immediately during rain.

Can Tomatoes, Peppers, Cucumbers, etc., Still Be Planted in June?

In rainy and cold years, tomatoes, peppers, cucumbers, zucchini, eggplants, and similar vegetables are best planted at the end of May or beginning of June. This way, there are fewer disease problems, the seedlings develop a better root system, and grow well.

Cucumbers and other plants in very bad condition are best replanted. In rainy years, planting in May is also hindered by wet soils, and there is nothing wrong with planting heat-loving vegetables in early June.

Choose a Suitable Mulch for the Summer

When planting, you should also consider that the soil should never be bare in the summer. Freshly mown grass from the meadow is best suited for mulch. Fresh grass can be used and laid in thin layers of about 2 cm thickness on the garden beds. This way, the grass mulch in the garden does not rot too quickly.

Also excellent is the summer mat made of sheep’s wool, as it absorbs large amounts of water during rain and slowly releases it to the plants in summer. Sheep’s wool is an excellent insulator against strong summer sun rays, as it protects the soil from heat and summer storms that can compact the soil heavily.

Sowing Endive and Radicchio in June


The best sowing time for radicchio and endive is in June. Then you sow summer radicchio, which is harvested in the same year, as well as winter radicchio varieties. Winter radicchio is best sown at the end of June and beginning of July.

Do not forget to sow a few rows of Trieste lettuce, for a delicious salad in the hot summer. Regularly cut it to keep the leaves tender and not bitter.

Brussels Sprouts and Kale


Plant or sow brussels sprouts and kale in June. This way, you ensure a supply of vitamins and fresh vegetables for cold winter days.

Sowing Radish, Kohlrabi, and Turnips


The beginning of June is a good time to sow black radish.

The end of June, beginning of July, and all of July are good times to sow turnips, which can later be preserved as pickled vegetables.

From June to the beginning of August, radish and kohlrabi are also sown. The best sowing time for kohlrabi is at the beginning of July, when there is still enough moisture in the soil.

Pay Attention to Crop Rotation of Vegetable Varieties in the Garden

Cabbage, black radish, kale, and brussels sprouts are not planted in beds where arugula, radish, and kohlrabi have previously grown, as they are related to these plants. Plant other vegetables there, as related species would not thrive as well there anymore.

What to Plant and Sow After Early Potatoes?

Sugarloaf chicory.

Black radish and cabbage are sown after potatoes. In June, after early potatoes, it is best to plant brussels sprouts, kale, and cabbage, which can be sown or replanted. Radicchio and endive are also suitable vegetables to grow on former potato beds.

What Follows on a Bed with Lettuce, Radish, Kohlrabi?

Garden bed with lettuce and kohlrabi.

Endive and radicchio are not planted after lettuce, as these vegetables are related. After lettuce, we usually sow black and white radish.

Carrots can also be sown in June after the harvest of spring lettuce.

After kohlrabi and radishes, which were sown in early spring, you can sow or plant endive and radicchio.

Sweet Fennel, Tall Beans, and Summer Lettuce Varieties

Furthermore, sweet fennel can be sown in June. If sown in June, it does not bolt quickly. It thrives best in the company of endive and radicchio. You can also plant seedlings in the garden.

At the end of the month, you can sow tall beans. Summer lettuce varieties are also sown in June. Lettuce feels most comfortable in the shade of tall beans, tomatoes, and peppers. We recommend planting lettuce as seedlings. This will make the harvest more abundant.

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What Else is Sown in June?

June is the first summer month. This month, there is still enough rain, so quickly refill the empty garden beds. Sweet corn, carrots, parsley, etc., can still be sown. It’s also not too late to sow beets and low beans.

If the beetroot is planted too densely, remove the excess seedlings. It can also be sown in June.

Carrot, parsley, and beet seedlings must be thinned out regularly after sowing. By thinning, you also loosen the soil at the same time. This has a very positive effect on the plants, as the soil is aerated after summer rains. If there is not enough rainfall, make sure to provide good irrigation.

If you like cauliflower and broccoli, you can sow them in the shade of tall beans and sweet corn, as they do not tolerate summer heat very well.

Regularly Water the Garden and Loosen the Soil

Blackening of the tomato due to calcium deficiency. Calcium is added using calcium foliar fertilizer.

Adequate soil moisture is very important in June, as the plants cannot grow properly otherwise.

As a result of calcium deficiency, tomatoes usually have black or brown spots. Zucchini and cucumbers can also be affected. With compacted soil and uneven rainfall, black leaf edges also occur on lettuces. Therefore, it is especially important to keep the soil moist by mulching.

It is extremely important to regularly loosen the soil in your garden. By doing so, the soil around the plants does not get compacted. Ensure loosening with a hand-held garden hoe that has three prongs. With it, the soil is quickly and easily loosened throughout the garden. This way, summer rains do not run off at the soil surface and remain in the root area.

Organic Strengthening of Tomatoes with Baking Soda

In June, tomatoes in the garden are strengthened. For this, use a baking soda preparation. Prepare it by mixing baking soda with lukewarm water, add cooking oil and a few drops of dish soap to the spray.

Recipe for preparing baking soda:

  • 1 tablespoon of baking soda
  • 4 liters of water
  • 2.5 tablespoons of cooking oil
  • a few drops of dish soap

For proven success, the plants should be sprayed in early summer. The best effect is achieved with regular weekly application and spraying after every heavy rain.

Spray the tomatoes after every heavy rain or once a week with baking soda.

Greenhouse in June

Ensure in the greenhouse that tomatoes, peppers, cucumbers, and other fruits always have enough water. Also, make sure you have mulched the soil to use less water for watering. Do not close the greenhouse at night. If you close it at night, too much moisture remains in the greenhouse, and disease problems could occur in July.

Lay a hail net over the greenhouse to shade it and prevent it from overheating.

Greenhouse in June.

Ensure to regularly spray with calcium foliar fertilizer, which prevents “blackening” of the lower part of the tomato fruit. Spray peppers, cucumbers, and other vegetables every 10 to 14 days with calcium foliar fertilizer.

Additionally, you can regularly strengthen the plants with a natural biostimulator derived from seaweed. We recommend using this regularly for all plants in the home garden.

Raised Bed and Summertime

The spring harvest from raised beds is brought in at the end of May and in June. Afterwards, it is quickly replanted. The raised bed should always be full of vegetables.

Raised bed in early June. Low-growing tomatoes of the varieties “Tumbling Tom Red” and “Tumbling Tom Yellow” together with the last spring lettuce.

You can also plant lettuce, endive, radicchio, etc., in the raised bed. Among the lettuce seedlings, kohlrabi seedlings are excellent for a high garden bed. You can still plant spring onions, which will enrich your summer salad plate.

Make sure in June that the raised beds are regularly supplied with water, as the raised bed dries out faster than the regular garden beds. This is especially important for cucumbers and peppers. Also, eggplants, tomatoes, zucchini, and other vegetables growing during this time are grateful for the additional water. Additionally, cover the raised bed with an organic straw mulch.

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