Planting veg seeds in June

What Veg Seeds To Sow In June

June is a prime month for gardeners in the UK. The warmer weather and longer days create ideal conditions for sowing a variety of vegetable seeds. Whether you’re a seasoned gardener or a beginner, there are numerous crops you can start in June to enjoy a bountiful harvest later in the season. This guide will cover a range of vegetables, including pumpkins, squash, and sunflowers, which are perfect for sowing this month.

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Pumpkins & Squash


Pumpkins are a fantastic crop to start in June, especially if you’re aiming for a harvest in time for Halloween. Varieties like ‘kamo kamo’ and Raymond Blanc’s favourite ‘Musquee de Provence’ are popular choices. Sow seeds directly into the ground in a sunny spot with well-drained soil. Pumpkins need plenty of space, so plant them about 1-2 metres apart. Regular watering and feeding will help your pumpkins grow large and healthy.

Squash and Courgettes

Squash, both summer and winter varieties, can be sown in June. Summer courgettes like ‘Jaune et vert‘ or ‘Striato‘ grow quickly and can be harvested throughout the summer. Winter squash, such as ‘Butternut‘ or ‘Fungo‘, take longer to mature but store well for winter use. Sow seeds directly into the ground or start them in pots and transplant them later. Ensure they have plenty of space and water regularly.

Leafy Greens


Lettuce is a quick-growing crop that can be sown multiple times throughout the summer for continuous harvests. Varieties like ‘Copacabana‘ and ‘Arcade‘ are fairly heat-tolerant and perfect for June sowing and can be used as cut and come again varieties which helps to prevent bolting. Sow seeds thinly in rows and cover lightly with soil. Water regularly and thin out seedlings to give each plant space to grow.


Spinach can be tricky in hot weather as it tends to bolt, but choosing heat-resistant varieties like ‘New Zealand‘ spinach can help. Sow seeds directly into the soil and keep the ground moist. Partial shade can also help prevent bolting.

Root Vegetables


Carrots sown in June will be ready for an autumn harvest. Varieties like ‘Gniff‘ and ‘Atomic Red‘ are ideal for this time of year. Sow seeds thinly in rows and cover lightly with soil. Thin out seedlings to prevent overcrowding and ensure well-drained, poor quality sandy soil for the best results.


Beetroot is another excellent choice for June sowing. Varieties such as ‘Cylindra‘ are resistant to bolting and grow well in warm weather. Sow seeds directly into the ground about 2.5cm apart, and thin out seedlings to about 10cm apart. Beetroot can be harvested young for tender roots or left to mature.


French Beans

French beans are perfect for June sowing. Varieties like ‘Carminat‘ or ‘Monte Gusto‘ can be sown directly into the ground. Provide support with canes or a trellis as they grow. Keep them well-watered and enjoy a continuous harvest by picking beans regularly.

Runner Beans

Runner beans grow quickly in warm weather. Varieties like ‘Sunset‘ can be sown directly into the soil. Plant seeds at the base of supports and water regularly. Harvest beans when they are young and tender to encourage more growth.



Kale can be sown in June for a late summer and autumn harvest. Varieties such as ‘Precoce di Toscana‘ or ‘Garlic Kale‘ are hardy and flavourful. Sow seeds in a raised beds or directly into the soil, and thin seedlings to about 45cm apart. Kale is resilient and can withstand colder weather later in the year.


Cabbage varieties like ‘Savoy‘ or ‘January King‘ can be sown in June for autumn and winter harvests. Start seeds in a seedbed and transplant seedlings to their final positions when they are large enough to handle. Space plants about 45cm apart and protect them from pests.



Sunflowers are not just beautiful; they are also a great companion plant and can be harvested for their seeds. Varieties like ‘Titan‘ or ‘Floristan‘ can be sown directly into the soil in June. Choose a sunny spot and plant seeds about 45cm apart. Sunflowers can grow very tall, so they might need staking as they grow. Harvest the seeds in late summer or early autumn for a nutritious snack or bird feed.



Basil thrives in the warm summer months.  Try a combination of green and purple leaves for interest in your dishes such as ‘Lettuce Leaf’ or ‘Purple Ball’. Sow seeds in pots or directly in the ground in a sunny location. Pinch out the growing tips to encourage bushy growth and prolong the harvest.


June offers a wealth of opportunities for UK gardeners to sow a wide variety of vegetable seeds. By choosing the right crops and providing them with the proper care, you can enjoy a productive and diverse garden. From pumpkins and squash to leafy greens and sunflowers, the possibilities are plentiful. Happy gardening!

Explore Seeds Perfect for Sowing in June