Our Guide to the Best Self Watering Planters Under $25

Each 8 inch pot uses cotton wicks to feed water up from the reservoir, and a clear window with measurement lines shows how much is left. A detachable saucer tray and drainage holes handle the excess so roots do not sit in standing water. The plastic is lightweight and rated for indoor and outdoor use.

Against the 4 inch packs, this is the only set here that fits a full-size houseplant. You get two pots rather than five or eighteen, so it costs more per pot. Against the HYNZ 6 inch set it holds a bigger root ball, which means less frequent repotting.

Buy it for a pothos, peace lily or a leafy herb that has outgrown a nursery pot. For cuttings and small violets, choose the T4U or Meowell packs.

Five 6 inch pots come with a clear removable waterer and a drainage hole. The color mix runs through five finishes. The plastic is weather resistant, so the same pots work on a porch.

This is the middle size between the 4 inch packs and the Fielda 8 inch. You get five pots at a modest price, which beats the Fielda on count and loses on root room. A 6 inch pot holds a basil, a mint or a mid-size philodendron comfortably.

Buy it for a kitchen windowsill herb collection. For a large plant, choose the Fielda, and for tiny starts, the Meowell is cheaper.

A cotton rope draws water from a double-layer reservoir, and the maker states about 7 to 10 days of hydration. The clear PET walls let you see the level without lifting the plant. The pots suit African violets, which prefer even moisture and dislike wet leaves.

Compared with the Meowell 5 pack, you get one fewer pot at a higher price, with PET walls that make the water level easier to read. Against the 6 inch HYNZ it is smaller but better for starts.

Buy it for violets, small herbs and propagation. Skip it for large plants, and pick the Fielda 8 inch instead.

Five 4 inch pots each include a wick rope that carries water to the roots. The transparent saucers detach so you can see the level and rinse out algae. Thick walls keep the plastic sturdy but light.

At this price it is the cheapest way to try self watering. Against the T4U you get one more pot for less, but the saucer is smaller than a reservoir window. It suits small cacti too, though the constant moisture is a risk for them.

Buy it for propagation and a first test of the system. For anything bigger than a violet, move up to the HYNZ or the Fielda.

Eighteen clear pots span 6.5, 5 and 4 inch, each with drainage holes and a deep reservoir. Clear walls let you watch root growth and moisture. The reinforced rim resists chipping, and the plastic is BPA-free.

The three sizes let you pot up a plant in stages without buying another pack. Against the Meowell it gives more sizes but the clear walls also admit light to the roots, so algae can show up in the reservoir. For a single large houseplant it is not enough.

Buy it for seedlings, cuttings and anyone moving plants through sizes. For one mature plant, the Fielda is the better fit.

The set includes one 17 inch window box, two 8 inch pots and four 4 inch pots, each with a matched reservoir and cotton wick. Drainage slots let the roots breathe, and the PP resin plastic is stated as BPA free and odorless.

It is the only pack here with a long box, which fits a row of herbs or lettuce on a sill. Against the Fielda it covers more sizes, but each pot is less refined. Against the MIXC 18 pack it has bigger sizes but fewer pots.

Buy it if you want a long herb box and two medium pots in one purchase. For one large houseplant, choose the Fielda.