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Salad Onion Seeds - North Holland Blood Red

Botanical - Allium cepa


Seed Count:
250 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Price £1.82

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250 Seeds.

Other Names - Spring Onions, Scallions, Bunching Onions, Green Onions…

A really useful dual purpose onion. Eat the onions young as red spring onions or leave to grow into red bulbs. North Holland Blood Red is an easy variety to grow and is suitable for large containers and beginner.

  • Dual purpose - use as spring onions or leave to form a large bulb.
  • Easy to grow, popular variety.
  • Mild and sweet tasting.

Suitable For - Vegetable plot, raised beds, container garden, limited space

Sowing Months - February - July

Harvest - Mid June - November

Gardening is about finding the right balance! Try growing Companion Plants close by to help deter pests.

  • Lettuce and salad onions grow well together.
  • Chamomile and summer savory - these two herbs if grown nearby are believed to improve the growth and flavour of alliums.
  • Beetroot, Kohl rabi, strawberries and cabbages are good plants to grow close to salad onions as they do not compete against each another.
  • The leaves of the comfrey plant can be used to make a rich liquid fertilizer ideal for giving onion plants a nutrient boost.

Soil Preperation

Add a good amount of compost or well rotten manure to the soil a few months before sowing or planting. A week before sowing rake the surface of the soil to produce a fine tilth and add some general purpose organic fertilizer. The soil should be a fine tilth.

General InformationSowing & Planting Information
Habit Biennial, grown as an annual Module Grown & Transplants
Type   Distance between plants 10 cm
Position Full sun Distance between rows 25 cm
Average height 35 cm Direct Sowing
Average spread 12 cm Sowing distance between plants 1 cm
Hardiness Hardy Distance between rows 25 cm
Overwintering No Sowing depth 1 cm
Soil Ph 6.5 - 7.0 Germination temperature 8 to 20℃
    Days to germination 7 - 14 days

Sowing Guide

Early Sowing/Module Sowing

Salad onions are best sown direct however for early sowings start indoors in modules. Sow 5 - 6 seeds per 4 cm module. As soon as germination has started reduce the heat and move to an area with good daylight exposure, a windowsill or greenhouse is ideal. Keep the compost moist but do not overwater.
After 3 - 5 weeks depending on speed of growth plant out. Harden off over a few days before planting out. Plant out at the distance suggested above. Firm the soil around each clump and water well. Cover with horticultural fleece if frost is forecast.

Direct Sowing

Sow 1 - 2 seeds every 1 cm at the depth and row distance suggested above. Lightly cover the seeds with fine soil and water well. Sow salad onions little and often to keep the kitchen in good supply over the season. Thin out if plants are closer than 1 - 1.5 cm apart.

Growing On

Weed often as the tall thin plants can easily be smothered by weeds. Water the young seedlings often in dry weather. Older plants will need watering well every 5 - 10 days in dry weather. The plants will benefit from a mulch of compost to help prevent the surrounding soil from drying out in the summer months.


Harvest by picking alternate salad onions so that the remaining plants can grow larger. The larger the gap the bigger the bulbs can grow. If the salad onions are difficult to pull out by hand, to prevent snapping use a trowel to loosen the soil first.
For bulbs, keep harvesting alternate onions until they are eventually 10 cm apart. This will allow space for a good sized bulb to form.
When the bulb is mature in August the foliage will start to turn yellow and will fall over. On a dry day, carefully lift the bulbs up with a fork, once lifted bend the necks back hard. If dry weather is forecast, lay the onions side by side along the surface of the soil to dry out in the sun.
Store dried onions in net bags or boxes or for a traditional storing method try plating each onion stem onto string to form a string of onions. Store in a cool dry shed or garage. Do not store damaged, bruised or any onions showing signs of disease.


Growing a row of salad onions on either side of carrots can help to confuse and help deter the carrot root fly.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

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The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

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If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.