Some of the fantastically strange plants like the mermaid tail or the opal-like clear succulents look like they’re from another planet and something that aliens keep on their alien desks in their alien offices.

If you want to get one of these peculiar succulents for yourself or for your loved ones as a gift, the mermaid one is called a crested Senecio Vitalis while the clear one is the Haworthia Cooperi plant.

Haworthia succulents are popular because of their “leaf windows” which let in a lot of light for the plant. The “windows” also minimize water loss from evaporation because the rest of the plant is buried underground. Haworthia plants also have accordion-like roots that pull them deeper into the ground so that they can thrive.

According to Reddit, Haworthia plants are easy to take care of and are great succulents for beginners: just pop them on the windowsill and they’ll be happy. Especially if you plop it into some gritty soil.

In general, succulents need plenty of light and you need to rotate them occasionally so all parts of it can enjoy the sun and to help it grow straight.

Overwatering is a big no-no, so check the soil regularly: if it’s dry, get your watering can ready. Also, keep in mind that succulents need more water during Spring and Summer and barely need any in Fall and Winter when they’re ‘resting.’ Finally, wipe the dust off your succulents to help them grow and become your picture-perfect plant-pals.