Simply use one part ordinary white cane sugar to four parts water.

It's not necessary to boil the water. The microorganisms that cause fermentation don't come from the water; they are transported to the feeder on hummingbird's bills.
Store unused sugar water in the refrigerator for up to two weeks.
Never use honey, syrup, or any other substitute as it's fatal to hummingbirds.
Do not use artificial sweeteners.

Hummingbirds also eat small insects, and to help attract them to your yard, you can simply hang an overripe banana peal or cantaloupe near the feeder; a mesh produce sack works well. please, use all pesticides wisely and only when needed, because hummingbirds depend on small insects as part of their diet and feed on nectar from garden flowers.

Plants to Attract and Feed Hummingbirds

Trees and Shrubs
* Azalea
* Butterfly Bush (Buddleia)
* Cape Honeysuckle
* Flame Acanthus
* Flowering Quince
* Lantana
* Manzanita
* Mimosa
* Red Buckeye
* Tree Tobacco
* Turk's Cap
* Weigela

Vines
* Coral Honeysuckle
* Cypress Vine
* Morning Glory
* Scarlet Runner Bean
* Trumpet Creeper

Perennials
Some may be annuals or perennials depending on climate.
* Bee Balm (Monarda)
* Canna
* Cardinal Flower
* Columbine
* Coral Bells
* Four O'Clocks
* Foxglove
* Hosta
* Hummingbird Mint (Agastache)
* Little Cigar
* Lupine
* Penstemon
* Yucca

Annuals
* Beard Tongue (and other penstemons)
* Firespike
* Fuchsia
* Impatiens
* Jacobiana
* Jewelweed
* Petunia
* Various Salvia species
* Shrimp Plant