About this species. Zingiber officinale is best known as the source of the pungent, aromatic spice called ginger. This spice is produced from the rhizome (underground stem) of the plant. Obtained by the Greeks and Romans from Arab traders, it was one of the first oriental spices to arrive in Europe.ingiber officinale (ginger). Ginger is a well known spice produced from the rhizome (underground stem) of the tropical herbaceous plant, Zingiber officinale.
The main particles in healthy soil are decomposed organic matter, these are things that are natural and were once living organisms. The more organic matter in the soil, the better moisture retention. So, the main thing to help re-hydrate your dry soil is by regularly adding organic matter and extra moisture.A few examples are 1  â. Compost â THE best form of organic matter.2  Compost is decomposing items that were once living.he more organic matter in the soil, the better moisture retention. So, the main thing to help re-hydrate your dry soil is by regularly adding organic matter and extra moisture. A few examples are 1  â. Compost â THE best form of organic matter. 2  Compost is decomposing items that were once living. 3  Eg fruit and veggie scraps.
1 Also, if you've let the plant dry out, the soil contracts and the same thing can happen. 2  To avoid this, and to re-hydrate dry soil, put the mum pot in a bucket of water with a few inches of water and leave it to soak for a few hours. 3  Don't forget it, because the plant can drown if you do. Fill in around the plant's root ball, because you want potting soil, not air in contact with the roots. 2  Tamp down soil gently. 3  Give the pot a good water and add more soil wherever it's needed. 4  Lots of sun-Mums are sun-lovers, so make sure your pot gets at minimum, 4 hours of direct sun a day.