Red Onion - Allium cepa - Plant

Edible

Root Vegetable

Discover the perfect addition to your garden with Red Onion Plants from Acqua Garden. These sweet bulbs are easy to grow and ideal for novice and experienced gardeners alike.

Premium quality red onion bulbs
Sweet and flavorful harvest
Ideal for small-scale gardening
Easy to cultivate and maintain
Perfect for sustainable home gardening

Elevate your gardening experience with these delightful red onion plants, bringing sustainability and deliciousness to your home garden. For more variety, explore our Leeks & Onions - Vegetable Plants collection.

High Yields

Rich Colour

Easy To Grow

Crisp, Sweet-Flavored Bulbs

Details

Red onions are a popular and versatile kitchen staple, known for their crisp texture and sweet flavour. Easy to grow, these plants thrive in full sun with well-drained soil, making them perfect for garden beds, raised beds, or allotments. Red onion bulbs are great for fresh use in salads or salsas, but they also hold their flavour well when cooked. Additionally, they store well after harvesting, ensuring a long-lasting supply of onions throughout the year.

Produces crisp, sweet onions perfect for fresh eating or cooking
Thrives in full sun with well-drained soil
Easy to grow in garden beds, raised beds, or allotments
Stores well after harvesting for long-term use

What's Included

Packs: Ready-to-plant onion packs, each containing 12 or 24 plants, ideal for direct planting in your garden beds or containers.

Delivery & Guarantee

Fast & Secure Delivery: We ship orders the same or next day, ensuring fast delivery via tracked Royal Mail or Parcel Force for larger items.

Shipping is FREE on all orders £60+

Bespoke & Secure Packaging: Our plants travel in custom packaging we've perfected over the years, arriving in excellent condition, thoroughly inspected, trimmed, and prepped.

100% Happiness Guarantee: Not happy with your purchase? We offer a full refund or replacement, even if you just change your mind, along with easy returns and prepaid postage.

Care Information

Sunlight	Full sun
Position	Sheltered or semi-sheltered
Soil	Well-drained soil
Planting Time	Autumn and spring
Moisture	Medium
Hardiness	Semi-hardy
Growth Rate	Medium
Spacing	15cm
Height and Spread	45cm x 30cm
Annual or Perennial	Biennial

Best Quality Plants

Delivered With Care

Money-back Guarantee

Best Quality Plants

Delivered With Care

Money-back Guarantee

What You Need To Know About “Red Onion - Allium cepa - Plant”

Plant Information

How To Plant

Plant Care

Red onion plants are easy to grow and produce crisp, sweet-flavoured bulbs with beautiful red-purple skins. These versatile onions are perfect for fresh use in salads or salsas, and they also hold up well in cooking. Thriving in sunny locations with well-drained soil, red onions are a staple for any vegetable garden or allotment. They also store well, providing a long-lasting supply after harvest.

Thrives in full sun and well-drained soil
Produces sweet, crisp onions ideal for salads and cooking
Perfect for growing in garden beds, raised beds, or allotments
Stores well after harvesting for long-term use

Thrives in full sun and well-drained soil
Produces sweet, crisp onions ideal for salads and cooking
Perfect for growing in garden beds, raised beds, or allotments
Stores well after harvesting for long-term use

Planting Time:	Spring to Summer
Sunlight & Positioning:	Full Sun
Where to Plant:	Garden Beds - Containers
Growing Location:	Garden - Patio

Planting Time:	Spring to Summer
Sunlight & Positioning:	Full Sun
Where to Plant:	Garden Beds - Containers
Growing Location:	Garden - Patio

Red onion plants are easy to grow and thrive in well-drained, sunny conditions. For best results, plant them in spring, spacing them evenly in rows. With regular watering and care, red onions will produce crisp, sweet bulbs by late summer.

Choose a sunny location with well-drained soil
Plant seedlings 10-15cm apart in rows or containers
Water well after planting and keep the soil consistently moist
Ideal for planting in spring for a summer-to-autumn harvest

Choose a sunny location with well-drained soil
Plant seedlings 10-15cm apart in rows or containers
Water well after planting and keep the soil consistently moist
Ideal for planting in spring for a summer-to-autumn harvest

Choose the Right Spot:	A sunny location with well-drained soil
Prepare the Soil:	Loosen the soil and mix in compost or organic matter
Planting:	Plant seedlings level with the soil
Spacing:	Space plants 10-15cm apart

Choose the Right Spot:	A sunny location with well-drained soil
Prepare the Soil:	Loosen the soil and mix in compost or organic matter
Planting:	Plant seedlings level with the soil
Spacing:	Space plants 10-15cm apart

Red onion plants are low-maintenance and thrive in sunny locations. Regular watering and occasional feeding will ensure strong growth and the production of crisp, flavourful bulbs.

Water regularly to keep the soil moist, but avoid waterlogging
Thin seedlings if necessary to avoid overcrowding
Mulch around the plants to retain moisture and suppress weeds
Harvest onions when the tops begin to yellow and fall over

Red onion plants are low-maintenance and thrive in sunny locations. Regular watering and occasional feeding will ensure strong growth and the production of crisp, flavourful bulbs.

Water regularly to keep the soil moist, but avoid waterlogging
Thin seedlings if necessary to avoid overcrowding
Mulch around the plants to retain moisture and suppress weeds
Harvest onions when the tops begin to yellow and fall over

Sunlight and Position:	Needs 6-8 hours of direct sunlight daily in a sunny spot.
Watering and Feeding:	Water regularly, especially in hot weather, and keep the soil consistently moist. Fertilize monthly with a balanced fertilizer.
Support and Pruning:	Ensure plants have enough space (10-15cm apart) for healthy growth, and remove any unhealthy leaves.
Harvesting:	Harvest when bulbs are fully grown and the tops start to yellow and fall over for peak flavour and storage capability.

Sunlight and Position:	Needs 6-8 hours of direct sunlight daily in a sunny spot.
Watering and Feeding:	Water regularly, especially in hot weather, and keep the soil consistently moist. Fertilize monthly with a balanced fertilizer.
Support and Pruning:	Ensure plants have enough space (10-15cm apart) for healthy growth, and remove any unhealthy leaves.
Harvesting:	Harvest when bulbs are fully grown and the tops start to yellow and fall over for peak flavour and storage capability.