Great Question! Moss is a non-vascular plant that absorbs water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis!Fun Fact: Moss was the first plant on earth was formed after brave "ALGAE" creeped up on the shore.Irish moss seeds are tiny but they grow and bloom the most beautiful little white flower.This moss is one of few mosses that grow with seeds (most grow from spores).Sphagnum Moss: We use multiple sources of Sphagnum moss that is farmed sustainably from USA. The mix we have made can hold 20x its weight in water!Sphagnum Moss has been used for thousands of years to lower PH in your soil.This type of moss has antiseptic properties & was used as bandages to inhibit the growth of bacteria.Dormant Moss:Our dormant moss is a dry moss mix made from 2 of the fasted growing moss types (Hypmnum & Sphagnum). Our moss contains powdered butter milk & a type of gel to retain moisture.It is in a dormant state meaning it can grow new spores if kept moist for a prolonged period of time. (gametophytes stage of growth)This moss has an indefinite shelf life.Colour is greenish brown but when watered & covered with film, it will be a beautiful vibrant green colour in 4-6 months (ALWAYS KEEP IT MOIST)Preserved MossOur preserved moss is treated to look green at all times. You don't have to water this ever.