Sansevieria Plant

Majority of people spend the bulk of their time indoors, whether it's at home or working in an office environment. as such, it's important to ensure that air quality is of a high standard, some thing that regular houseplant help can achieve.
A study by NASA found that Snake Plant (Sansevieria trifasciata) is one of the best plants for improving indoor air quality by passively absorbing toxins such as nitrogen oxides and formaldehyde.

Growing Conditions
Light: Bright, filtered light, but highly tolerant.
Water: Can survive long periods of drought. Water monthly or less in winter, weekly or every other week in summer.
Temperature: Above 50ºF, but can survive cold spells.
Soil: Use a fast-draining cactus mix.
Fertilizer: Feed during growing season. Do not feed during winter.

Propagation
African spears can be divided when several spears are present, but it's usually best to buy a new plant.

Repotting
Repot annually or every other year in the spring. They will survive being rootbound.

Varieties
The basic species is Sansevieria cylindrica, although there are a few varieties available, and some growers have experimented with braiding or shaping the basic plant. Spear-like Sansevieria may be lightly banded or solid colored, ranging in size from 12 inches to 24 inches. All species, however, are equally hardy.

Grower's Tips
These are almost foolproof plants. They can survive long periods of drought, haphazard feeding, and being root bound. Similarly, they can be acclimated to deep shade or bright light. Truly, they thrive on neglect. One exception to this rule: their pots must be well drained. Like succulents, the roots cannot be allowed to sit in water or they will begin to rot. These make great desktop plants for people who want something besides lucky bamboo. They bear small flower spikes arising from the base of the spears.