This OP-seedling is going to flower soon. Healthy bright-green Rugosa foliage.
Next week it will be "summer" over here as the weather-forecast predicts... and we already have so much "spinach" in our garden:
Last year, I sowed Président de Sèze seeds, that I got from HMF-member Carsten. Only three germinated in 2017 and two seedlings survived winter. ...But surprise, this spring after overwintering outside, a lot more germinated: