1 Tbsp (14+ gram) dry Crystal Soil Granulates
(enough to make 4-5 cups (approx 1 Liter) of hydro gel soil.

Also known as Hydro Gel, Water Crystals absorb and hold water, storing it for an intended application.

In gardening, horticulture and agriculture, hydrated crystals become reservoirs of moisture for thirsty plants. They capture excess irrigation in any type of gardening, helping keep the soil moist and creating a healthier growing environment.
They will hold the water for extended periods of time until drained through transpiration. At that time or anytime prior, hydration can be replenished to their water holding capacity, which is 400-500 times their dry size. Within several minutes after immersion or contact with water, a Water Crystal the size of a small seed begins to grow.
When mixed or tilled into soil, Water Crystals will absorb and retain excess water for periods lots longer than untreated soil is capable of doing. The extent of time depends on ambient temperature, humidity and the thirst of the plant(s) the soil feeds.
Clear water crystals can be turned into a colorful jelly. Color such as food dyes can be stirred into the dry crystals, which can then be hydrated with water. Alternatively, water mixed with dye can be used to hydrate the crystals.
Great for rooting cuttings and various seed germination. Biodegradable and non-toxic. Crystal Soil Crystals are Made in the USA and last for several years.