| Growing area | : | Latitude 15º-35º: se queensland, south australia, southern africa, northeast & south brazil, south europe, usa |
| Market aim | : | Fresh market with some storage |
| Day length | : | Late short day for hot dry to hot humid conditions |
| Storability | : | Short to medium (3-5 months) |
| Sowing period | : | South hem 15°-25°: nov-dec, south hem 25°-35°: late may-late jul, north hem: late nov-late jan, (in all regions a few weeks earlier if by transplant seedlings) |
| Harvest period | : | Approx 24-28 weeks after seeding, south hem 15°-25°: apr-may, south hem 25°-35°: late nov-jan, north hem: late may-jul |
| Shape | : | Grano-globe |
| Size | : | Large (90-110+ mm), depending on seasonal factors, sow date and location |
Late Short Day Yellow onion. This variety has very large, globe to grano shaped bulbs with good skin retention and excellent yield potential. It has exhibited good field partial resistance to
Pink Root disease. It has a sweet flavour with good firmness and storage ability for this type of onion. Colossus can be grown in tropical conditions in hot dry and hot humid conditions.