Knowing when to plant seeds is crucial to successful germination and healthy plants. I don’t know about you, but I am always eager to get sowing seeds indoors in the winter. Trouble is I always sow too many and too soon. They shoot up in the seed trays indoors and they are ready to be transplanted outdoors in no time. Problem is – it is still too cold outdoors to plant them out… These two charts have been created by the lovely folks at Roots Nursery!