Club Moss, Selaginella kraussiana
Club moss grows well in the tropics in shade and moist, wet soils, making it a good houseplant for a dish garden without drainage. It also needs higher humidity, so consider putting it in a bathroom.
Club moss is easy to root as roots form along the stems. According to North Carolina State Extension, cold water can shock this plant, so always use room temperature water.
Peace Lily, Spathiphyllum
At one time, peace lilies were grown only in water, and you could buy vases just for doing this. Generally, peace lilies don’t mind moist soils at all. If allowed to dry out, they’ll wilt, but fortunately they’ll bounce back quickly once you’ve watered them.
In a container with no drainage holes, water when the top of the soil is dry, or when you first see the plant wilt. Hold back on the watering if the plant is wilting in wet soil.
Bird of Paradise, Strelitzia reginae
This is another plant from the tropics you can grow in a pot without drainage holes if you don’t overwater it. Stick your finger an inch or so into the soil to ensure it’s dry, then water carefully to avoid pooling in the bottom of the container. These houseplants also prefer high humidity, so mist occasionally.
In the winter, when the bird of paradise grows more slowly, you may need to water it only once a month.
Lucky Bamboo, Dracaena sanderiana
Lucky bamboo, like the peace lily, is sometimes sold in a vase of water, with rocks added at the bottom for the roots to grow. You can also find these plants with the stems braided or twisted together.
Though not a true bamboo, this houseplant clearly likes and thrives in water, but will also grow in moist soil. Put your container of lucky bamboo where it gets good, indirect light, and don’t let it dry out.
Venus Fly Trap, Dionaea muscipula
Venus fly trap is often sold as a novelty plant. It naturally grows in bogs where the soil is wet, acidic and lacking in nutrients. Give it the same conditions by planting it in a potting soil with lots of peat moss.
In a container without drainage, keep the soil moist, but don’t add so much water that it goes stagnant and smells bad. Chlorinated tap water can harm these plants, so collect rainwater to give it.
Pothos, Epipremnum aureum
Pothos is another tough houseplant that will tolerate a container without drainage holes, at least for a while. This is why you’ll often find it growing in a dish garden.
Allow the soil to dry out a bit before watering, and don’t add so much that it can’t absorbed. If you do add too much water, carefully pour off the excess.
Air Plants, Tillandsia sp.
Containers without drainage holes are great to grow air plants, which don’t require any soil at all. These plants are easy to care for.
Mist them frequently or give them a weekly bath in room temperature water. Then shake off any water and put them back in the container. Many air plants will also flower, a bonus for any houseplant.