Hydrofarm 5.5 inch Plant Pot, Square Black Plastic Planter, 5.5 in Tall

Hydrofarm 5.5 inch Plant Pot in a Square Shape

Square pots fill a tray or bench with less wasted space than round ones. This Hydrofarm planter measures 5.5 inches across the top and 5.5 inches tall. It is molded from black plastic for indoor or outdoor use. The sides taper slightly toward the base, which helps a root ball slide out at transplant. A rolled rim with corner tabs stiffens the top edge. Drainage holes in the bottom let excess water escape after each irrigation. Small feet lift the base so those holes stay clear of standing water in the tray. The pot holds soil mixes, soilless blends, perlite or clay pebbles. Black plastic keeps light from reaching the root zone, which limits algae on the media. The dark wall also holds warmth, which the maker notes helps stimulate growth. This size suits seedlings and rooted cuttings stepping up from cubes or plugs. It also works for herbs, lettuce and small houseplants that stay compact.

Potting Up and Spacing a Square Pot

Fill the pot to about half an inch below the rim with moist media. Firm it lightly so it settles without packing tight. Set the transplant at the same depth it grew in the cube or plug. Water slowly until a little runs out of the bottom holes. Place pots on a flood table or a tray with a drain so runoff can leave. Square pots sit edge to edge, so a tray holds more plants with even spacing. Leave gaps once leaves begin to overlap, so air reaches every plant. Roots showing at the drainage holes signal that the plant is ready to move up. To transplant, water first, then tip the pot and squeeze the sides gently to free the root ball. Clean used pots with warm, soapy water and a mild disinfectant before reuse. Stack empty pots to save space between crops. In hot sun outdoors, shade the black walls to keep roots from overheating.

Key Features

• 5.5 x 5.5 in Size: Square top, 5.5 inches tall.
• Square Footprint: Packs trays edge to edge.
• Bottom Drainage: Holes release excess water.
• Raised Feet: Keep drain holes off the tray floor.
• Black Plastic: Blocks light from the root zone.

Technical Specifications