Plant of the Month: Buy 2 for £15

Add 2 to your basket and enter 'POMDEC' during checkout

Choose any 3 and get the cheapest FREE!

Onion 'Showmaster' - 24 Plants



Catalogue Code: 1080-5312

Sale price

Order Now - Delivery from mid April

Regular price £6.99
Shomaster Onions plants produce extra large bulbs and they have a very mild, sweetish flavour similar to Spanish onion types. These have become a great favourite with our customers who want earlier, larger onions.

Key Features

  • Prefers full sun

Pack Contents: 24 Onion Plants


  • A whopper in size
  • Fantastic for exhibitions.
  • Amazing value for money due to its size.
  • Harvest August to October.

Huge size and flavour all in one onion. A proud exclusive to Marshalls and a real customer favourite this onion is a real attention grabber, fun to grow and fun to talk about If you have ever been to an exhibition before, then this show master onion needs little introduction to just how colossal it is. To put it into perspective these onions can reach up to a whopping 2kg each!

Don’t be put off if you have no intention of exhibiting. The show master is a great value for money addition for the home cook. Providing you with a very mild, sweet flavour to add to your dishes. A lot of our customers report having mini-competitions between friends to see who can harvest the biggest onion.

Pot up around early to mid-April into 9cm pots. We then recommend that you harden off in a cold frame before planting out early May.

Growing Calendar

J Jan F Feb M Mar A Apr M May J June J Jul A Aug S Sep O Oct N Nov D Dec
Plant Outdoors


Delivery to outside of Great Britain

We regret we are unable to deliver any products to non-mainland Great Britain delivery addresses. This includes Europe, Channel Islands, Republic of Ireland, Northern Ireland, USA and Rest of World. We will update our website if this changes.

For more information about our deliveries please click here.