#11 Pothos
This plant is commonly grown in water. Take tip cuttings of any length and put the cut end into some water making sure that 2-3 nodes are submerged in water.
#12 Arrowhead
This plant is similar to pothos. Tip cuttings can be potted up with a few nodes below the water level.
#13 Philodendrons
Dainty heart-leaved philodendrons, as well as the large, split-leaved types, they do equally well in water. Take 6-8 inch cuttings of growing tips and put in a container that can support its weight.
#14 Peace Lily
You can pot up divisions or use an entire plant growing in a pot. Just wash off all the soil from the roots and put it in a bowl of water.
#15 Aluminum Plant
Cuttings of this beautiful plant with silver markings do very well in water.
#16 Dracena
Sections of the cane can be rooted and grown in water, but support is essential for these top-heavy plants.
#17 Lettuce
This is the most favorite vegetable of hydroponic farmers. The easiest way to grow them hydroponically is to start the seeds in netted cups. When they are bigger, insert them into the beds containing a growing medium.
#18 Spinach
This leafy vegetable is grown the same way as lettuce.
#19 Tomatoes
Tomato seeds started in individual cups are inserted into the growing medium. High yields are typical of hydroponically cultivated tomatoes.
#20 Peppers
Their requirements are similar to tomatoes.
#21 Cucumbers
Bush type cucumbers are preferred for hydroponics; the climbing type would need extra support.
#22 Celery
Being able to grow celery without soil is a bonus; it means no dirt deposited in the leaf bases. It makes cleaning the vegetable very easy.