Bolt Resistant Onions

Bolt-Resistant Onion Plants FAQs

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

When to plant Bolt-Resistant Onion Plants

Bolt-resistant onion plants should be planted in early spring, from March to April, or in autumn for overwintering varieties. These onions are specially bred to withstand fluctuations in temperature, reducing the risk of premature flowering (bolting). Planting at the right time ensures strong root development and healthy bulb formation.

How to Plant Bolt-Resistant Onion Plants

Choose a sunny location with well-drained, fertile soil. Before planting, enrich the soil with organic compost or well-rotted manure. Space plants 10-15cm apart in rows, with 30cm between rows. Plant onions so that the base of the plant is just above the soil surface. Water well after planting and keep the area weed-free for optimal growth.

How long do Bolt-Resistant Onion Plants take to grow?

Bolt-resistant onions typically take 4-6 months to reach full maturity. Spring-planted onions are usually ready to harvest from late summer to early autumn, while autumn-planted varieties can be harvested the following summer. Onions are ready when the tops begin to yellow and fall over naturally.

Why should I plant Bolt-Resistant Onion Plants?

Bolt-resistant onions are ideal for UK gardeners, as they reduce the risk of premature flowering, ensuring larger, more uniform bulbs. They are easy to grow and store well, providing a fresh supply of onions for cooking. Growing your own also means you can enjoy homegrown flavour with no added chemicals.

Where can I plant Bolt-Resistant Onion Plants?

Onion plants thrive in open vegetable beds, raised beds, or large containers with well-drained soil. They require a sunny position to develop properly. Avoid planting in areas prone to waterlogging, as excessive moisture can lead to rot.

Why Buy Bolt-Resistant Onion Plants from Marshalls?

We offer top-quality bolt-resistant onion plants selected for strong growth and high yields. Our varieties are carefully chosen for UK conditions, reducing the risk of bolting and ensuring a reliable harvest. With expert growing advice, fast delivery, and a satisfaction guarantee, Marshalls is the trusted choice for UK gardeners looking for hassle-free onion growing.