Onion 'Stuttgart Long Keeper'

Allium cepa var. cepa

How to grow Onion 'Stuttgart Long Keeper'

  • Full Sun

  • Medium

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Stuttgart Long Keeper is thought of as very hardy, so this plant will survive though longer winters with little or no damage. Stuttgart Long Keeper requires a loamy, clay and sandy soil with a ph of 6.0 - 7.0 - it grows best in weakly acidic soil to neutral soil.

Growing Stuttgart Long Keeper from seed

Look to ensure a distance 1.95 inches (5.0 cm) between seeds when sowing - bury at a depth of at least 0.98 inches (2.5 cm) deep. Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

By our calculations, you should look at sowing Stuttgart Long Keeper about 28 days before your last frost date.

Transplanting Stuttgart Long Keeper

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Stuttgart Long Keeper is a very hardy plant.

Harvesting Stuttgart Long Keeper