Onion Stuttgarter Reisen is in Slovenia more commonly known as ''Holandska'' (''Dutch''). It makes yellow, flat onions that are well stored.
For cultivation of onions in the same year: we sow the seeds inside in February and grow seedlings and in April we transfer them outside to the permanent place. Onion is ripe in August.
For cultivation of onions in the following year: we sow the seeds directly to the permanent place outside from March to May. The bulb is mature in July. We can plant the bulb the same year in the autumn or next spring.