Chemistry experiment 31 - Chemical garden

Different metal salts are dropped into a solution of sodium silicate (waterglass). Plant like silicates are formed.
1 part waterglass and 2 parts water.
Salts used:
- Copper(II)sulfate
- Copper(II)chloride
- Aluminium potassium sulfate
- Iron(II)sulfate
- Cobalt(II)sulfate
- Nickel(II)chloride