Organo Republic, 25 Summer Veg & Fruit Seeds, 1870+ Heirloom Walmart.com How to Grow and Care for Yucca Plants Is This Food Natural Or Genetically Modified? When it comes to fertilizing fruit and flowering plants, I look for fertilizers that have higher phosphorus content compared to nitrogen. You can tell that from looking at the fertilizers NPK ratio, Its time to get your beetroot seeds in the ground. I prefer to sow them directly rather than in trays. Its easy to do.