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£1.45 each

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Onion Seeds - Tosca

  • Catalogue Code 1020-2285
  • Pack Contents: 1 Packet - 100 Seeds

Large elongated onions are extra-easy to cut and prepare on account of their unusual yet handy torpedo shape.

Sowing indoors

In January-March sow thinly 1cm (1/2in) deep in clean trays or modules of firm pre-watered compost.   Place in warmth 10-15°C (50-60°F) and keep moist at all times. 

Sowing outdoors

In February-March sow thinly into pre-watered soil 1cm (1/2in) deep, 10cm (4in) apart in rows 30cm (12in) apart.  Keep soil moist at all times.

Planting out

Plant out in April 10cm (4in) apart in rows 20cm (8in) apart.


Harvest onions as leaves yellow and wilt over in July to August. Carefully lift with a fork on a dry day.

Lift onions and spread out to dry once tops have gone over naturally before storing for winter use.


  • Good in containers and pots
  • Will flower well in full sun

Growing Calendar for Onion Seeds - Tosca

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
Sow Indoors
Sow Outdoors
Plant Outdoors
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Our products are all grown with the utmost care and to high standards of quality. We regularly check our nursery stock to determine exactly when they will be at the optimum time for despatch.

We despatch our fresh, nursery-grown live plants (including vegetables, trees and flowers) when they are at a stage of growth ready for you, the customer, to plant on at home.

The delivery period shown on your order confirmation indicates when you can expect to receive your order and we will endeavour to despatch your plants in this period within 7-14 days