Spring Onion Plants

Spring Onion Plants FAQs

Take a look at some of the frequently asked questions we receive from those looking to buy Spring Onion Plants in the UK. You can contact our Customer Service Team or browse our general FAQs for further advice.

When to plant Spring Onion Plants

The best time to plant spring onion plants in the UK is from early spring through to late summer, typically from March to August. Spring onions prefer cooler conditions and can be grown successfully throughout much of the growing season. For a continuous supply, plant successionally every few weeks. In milder areas, spring onions can also be grown into autumn, particularly when protected from severe cold.

How to Plant Spring Onion Plants

To plant spring onion plants, choose a sunny or partially shaded spot with moist, well-drained, fertile soil. Prepare the soil by removing weeds and loosening it before planting. Plant the young spring onion plants into the soil at a similar depth to which they were previously growing, spacing them around 5–10 cm apart with approximately 15–30 cm between rows. Water well after planting and keep the soil consistently moist, particularly during dry periods. Regular watering will help encourage tender, succulent stems and prevent the plants from becoming stressed.

How long do Spring Onion Plants take to grow

Spring onion plants can typically be ready to harvest in around 6 to 10 weeks, depending on the variety and growing conditions. They can be harvested when the stems have reached a useful size and the plants are well established. For a milder, more tender crop, harvest while the stems are still relatively young. You can either harvest individual spring onions as required or lift the whole plant. Successional planting can provide a steady supply of fresh spring onions throughout the growing season.

Why Grow Spring Onion Plants?

Growing spring onion plants is an easy and rewarding way to enjoy fresh, home-grown flavour throughout the growing season. Spring onions are quick to mature and require relatively little space, making them ideal for smaller gardens, raised beds and containers. Their fresh, mild flavour makes them a versatile ingredient for salads, stir-fries, soups, garnishes and many other dishes. Growing your own also means you can harvest them when needed, ensuring a fresh supply straight from the garden.

Where can you grow Spring Onion Plants?

Spring onion plants can be grown in a wide range of locations, provided they have sun or partial shade and well-drained, fertile soil. They are particularly well suited to vegetable gardens, raised beds, containers and patio planters, making them a useful crop for gardens of all sizes. When growing in containers, choose a container with good drainage and use a quality, fertile growing medium. Keep the plants well watered during dry weather and avoid allowing the soil to become waterlogged.

Why Buy Spring Onion Plants from Marshalls Garden?

Your Trusted Gardening Experts

We’re more than just a team — we’re your gardening experts, here to provide trusted gardening advice, helpful guidance and expert support for all your gardening needs. Whether you’re an experienced gardener or just getting started, we’re here to help you grow with confidence.

Explore our extensive collection of gardening guides, developed from our years of gardening experience since we were founded in 1948. From growing tips and plant care advice to seasonal gardening inspiration, our resources are designed to help you get the most from your garden.

Have a question about plants, seeds or gardening products? Our friendly team is available Monday to Friday. Get in touch to discuss our product range or chat with us about all things gardening.

When you order from us, you can expect a fast and reliable service. In-stock plants and seeds are dispatched within two working days, and all our packaging is recyclable, helping you make more sustainable choices for your garden and the environment.

You can shop with confidence knowing that our reputation is built on the experiences of our customers, with thousands of five-star Trustpilot reviews and a 100% happiness guarantee across our products.

We’re not just here to sell gardening products — we’re here to share our knowledge, support your gardening journey and help you grow with confidence.