Stuttgart Long Keeper is part of the Allium genus and is a Onion variety. Its scientific name is Allium cepa var. cepa 'Stuttgart Long Keeper'. This variety is a Vegetable that typically grows as an Perennial, which is defined as a plant that matures and completes its lifecycle over the course of three years or more. Stuttgart Long Keeper is known for growing to a height of approximately 45.0 cm (that's 1.46 feet in imperial).
Stuttgart Long Keeper Onion is great for inexperienced gardeners and those that like low maintainance gardens.
This variety plant info is provided by the myfolia gardener's wiki. All details about Stuttgart Long Keeper have been kindly provided by our members.
By our calculations, you should look at sowing Stuttgart Long Keeper about 28 days before your last frost date.