Petrocosmea cryptica 'Whirlpool' (also known as rosettifolia) is native to Western China and can be found growing in various substrates but mostly in decomposed limestone or in rich, free-draining leaf litter or humus.
This plant is very easy to grow and can be grown and propagated just like an African violet by leaf cuttings. What makes the 'Whirlpool' clone unique is the beautiful dark green foliage with yellowish variegation.
The leaves can cover the potting mix so watering from the bottom with the pot standing in a saucer may be essential. Allow the water to be fully taken up and the mix to dry or approach dryness between watering. This plant can tolerate a wide range of temperatures but in order for it to flower well it needs to be below 65 degrees Fahrenheit at night. This plant can take cooler temps without any problems. Humidity and free-draining potting mix are the important things so a peat-based mix with extra perlite or small Growstone is best. The flowers last well and emerge in the late fall to winter months.