Slick Rock Wave Large Planter Majestic Fountains and More 3 things to know before planting grass seed in Colorado CSU Extension Colorado State University Equisetum ( kwsitm ; horsetail) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds., Equisetum is a living fossil, the only living Tomatoes are heavy feeders and the nutrients in your soil will quickly be used as they produce fruit. Using Tomato! Liquid fertilizer from @espomaorganic every 2 to 4 weeks helps to maintain