Care Tips Haworthias are incredibly resilient to neglect. When in question, opt not to water. Light: Partial shade/sun to Full Sun. The brighter the light, the deeper the shades of green. In full sun, the green in a Haworthia attenuata will turn an alternately beautiful reddish-purple. Water: Drought-tolerant but susceptible to overwatering. Let the soil dry before watering again. As mentioned above, when in question opt not to water Haworthia attenuata. This plant loves neglect!!