QuestionsHow to growGreenhouse GrowingSkills of Greenhouse growingType of moss? 0 Vote Up Vote Down Jon Macro asked 9 years ago We’ve got this plant all over. The photo is the tomato bed in the glasshouse, but it is in veg beds, flower beds, patio cracks, etc.. It doesn’t seem to respond to Roundup or Mo-Bacter. It is a devil to manually weed. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago The weed is pearlwort… repeated hoeing will give good control. Equip yourself with a small hand-hoe and a stirrup-hoe.Â