Onion Agostana is a white onion variety with nice mild-tasting flesh that still has some spice in it. The onions are round and have a diameter of between 6 - 8 cm. Each onion weighs 190 - 220 grams. The flesh is hard and juicy. Onion Agostana isn't a really good storage onion, use the onions as fresh as possible. After harvesting, this onion can be kept in the crisper section of the fridge for about a week. Agostana is a late-ripening onion, it needs at least 130 days to ripen. So sow early.
Onions are the basis for many dishes. They are very versatile and healthy. You can boil, fry, fry, stew, steam, stuff, grate, fry, caramelise, cook in the oven, use in stews, use in soups and sauces. Onion is very healthy and full of: polyphenols. It also contains a lot of vitamins B, C, B6 and B11. It also contains minerals such as: potassium, iron, phosphorus, calcium, manganese and molybdenum. It also contains tryptophan. Use onions in: Mexican recipes, salsas, chutneys, salads, with meat, in onion soup, in soups, in stir-fries, in stews, in oven dishes, in Guacamole, in dressings, in potato salad, in Quiches and in soups and sauces. Onions combine deliciously with, among others: chicken, fish, beef, pork, minced meat, eggs, cheese, cream, butter, garlic, rice, pasta, feta cheese, salmon, tuna, cod, apple, nuts and prawns. And with other vegetables such as: peppers, leeks, tomatoes, potatoes, spinach, mushrooms, green beans, broccoli, cauliflower, aubergine, courgette and pumpkin. Non hardy annual.
Indoor sowing: January - February
Outdoor sowing: March - April
Germination: 10 - 12 days
Germinationtemp.: 9 - 15 °C
Sowing depth: 1 - 1½ cm
Distance between rows: 30 - 45 cm
Planting distance: 8 - 12 cm
Plantposition: sunny
Harvestperiod: late July - September
Sowing indoors can be done from January - February in trays with separate cells filled with moistened sowing soil. Sow the seeds sparingly and 1 - 1½ cm deep. Cover the seeds with a layer of sowing soil, as onions are dark germinators. Keep the temperature as even as possible. Especially don't let the temperature drop at night. Keep well moist. From mid-March, as soon as there is no chance of severe night frost, put the seedlings outside in a sunny place with good drainage. Cut the seedlings off at the top so that they are 8 cm long. Tuck them 6 cm deep under the soil. Keep well moist and weed-free.
Sowing outdoors can be done from March, as soon as the ground starts to warm up and no more severe night frosts are expected. Sow in rows 30 - 45 cm apart. Sow sparingly and 1 - 1½ cm deep. Cover the seeds with a layer of sowing soil as onions are dark germinators. Thin out the seedlings to 8 - 12 cm when they are about 15 cm tall. Keep well moist and weed-free.
Harvest the onions when the tops are brown and dry. Pull the bulbs up from the ground. Onions need nutrient-rich, moist soil enriched with compost. Don't sow or plant onions in an area that has had onions in the previous 4 years. Placement of strongly scented plants like chamomile, savory and carrots in close proximity to onions could have a disruptive effect on the onion fly. Onion Agostana isn't a really good storage onion, use the onions as fresh as possible. This onion can be stored in the vegetable drawer of the fridge for about a week or so after harvesting. Non hardy annual.
