Lycoris Squamigera aka August Lily, Surprise Lily, Magic Lily, Naked Lady, or Resurrection Lily are fairly simple to grow even though you may find very conflicting information on the internet.  Here is my experience with these bulbs followed by some info I did not know:

Plant the bulbs in any soil with good drainage, full sun to partial shade.  I have planted these bulbs in sandy soil as well as in good garden soil and they seem to thrive anywhere I plant them. I have even planted them in heavy (blue) clay soil and that group was the tallest I've ever had -- up to 4' tall.    

                   August Lily Leaves (Spring)                         Multiple flower buds                              

                                                 August Lily Blooms (Summer)

The green leaves show up in early spring then die back, and like daffodils, allow the leaves to die back as this is how nutrition is generated in order for the bulbs to bloom.  Then, if you aren't watching, or forget where you planted them, Surprise! in late July to early August you will see tall flower spikes appear suddenly with a cluster of beautiful pink flowers on top.  I live in zone 4, and haven't mulched this particular bulb but I know they have survived our crazy weather in Northern and Mid-Central Indiana.  I have no idea why zone four is not on the zone chart but I plant them about 6" deep and 8" apart.  In warmer climates they can be planted a couple inches below the soil line.  I believe if you plant the August Lily the way you plant daffodils or tulips in your area they will do just fine.  I have found that they do not like to get their feet wet for very long -- they won't bloom. 

Below is the average info you will find on the internet and in gardening books:

August lily produces large bulbs that multiply quickly. These can be divided every 3-5 years. Plant bulbs with their tops just an inch or two beneath the ground surface, deeper in colder regions. They will do just fine under a sodded lawn.  They are a late summer-blooming bulb of the Amaryllis family with strap-like grayish-green leaves (to 12” long and 1” wide) that appear in the spring about the same time as daffodils. Leaves die back in summer. Thick naked flower stalks rise to 2’ tall or more in late summer, each bearing 4-7 funnel-shaped, rose-pink tinged with lilac flowers that are quite fragrant. Appearance resembles Belladonna lily (Amaryllis belladonna). Flowering habit somewhat reminiscent of Colchicum. Plants in the genus Lycoris are sometimes commonly called resurrection flower, surprise lily or magic lily because the leaves disappear in summer with the flower spikes seemingly rising from the dead in late summer.

Height:  12-18 in. (30-45 cm)
Spacing:  3-6 in. (7-15 cm)

Hardiness:

USDA Zone 5a: to -28.8° C (-20° F)
USDA Zone 5b: to -26.1° C (-15° F)
USDA Zone 6a: to -23.3° C (-10° F)
USDA Zone 6b: to -20.5° C (-5° F)
USDA Zone 7a: to -17.7° C (0° F)
USDA Zone 7b: to -14.9° C (5° F)
USDA Zone 8a: to -12.2° C (10° F)
USDA Zone 8b: to -9.4° C (15° F)
USDA Zone 9a: to -6.6° C (20° F)
USDA Zone 9b: to -3.8° C (25° F)
USDA Zone 10a: to -1.1° C (30° F)
USDA Zone 10b: to 1.7° C (35° F)
USDA Zone 11: above 4.5° C (40° F)

Sun Exposure:  Full Sun
Danger:  Parts of plant are poisonous if ingested

Bloom Color:  Pink to Magenta (Pink-Purple)
Bloom Time:  Mid Summer to Late Summer/Early Fall
Foliage:  Herbaceous, Smooth-Textured
Other details: Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Propagation Methods:
By dividing bulbs (including offsets)