DaPlug Sponge Cubes Bulk - 1 1/4 x 1 5/8-in Tapered - 2100 Count

Moisture-Holding Starter Cubes for Seeds and Clones - 2100 Count

Starting seeds and clones means balancing water and air around young roots. These sponge cubes hold moisture, release it evenly as they dry down, and keep air in the medium to support root development. You plant the whole cube straight into soil or a hydroponic system, so the roots are not disturbed at transplant.

This bulk unit holds 2100 cubes, which suits growers who start plants regularly or in volume, such as indoor growers running continuous cycles and commercial propagation rooms. Hobbyists who want to try the cubes will find the count large, so plan to share or store them.

Key Features & Benefits

• Spongy texture — holds moisture while leaving room for air at the roots.
• Even dry downs — supports steady root development for seeds and clones.
• Direct transplanting — plant the cube into soil or a hydroponic system, indoors or outdoors.
• Ready to use — pre-soak in a cloning or feeding solution before starting.
• Tapered cube — measures 1 1/4 in wide by 1 5/8 in deep.

Who Should Use DaPlug Sponge Cubes Bulk

Growers who start seeds or clones in volume and want one medium that moves into soil or hydroponic systems. It fits indoor growers, commercial propagation rooms and home gardeners who start plants often.

About DaPlug Sponge Cubes Bulk

DaPlug Sponge Cubes are a sponge-based seed starting medium sold as a bulk unit of 2100 cubes. The distributor describes the material as all-natural and eco-friendly, and says the cubes contain Trichoderma, a biocontrol organism. Each cube is tapered, 1 1/4 in wide by 1 5/8 in deep. The unit ships at 69.6 lb and measures 24 x 21 x 24 in.

Frequently Asked Questions

Q: Do I need to prepare the cubes before use?
A: They are ready to use. The distributor recommends pre-soaking them in a cloning or feeding solution first for best results.

Q: Can I sterilize them?
A: Yes. For sterile applications, the cubes can be boiled before use or before you reintroduce cloning or feeding solutions.

Q: What is the white or green growth I may see?
A: The cubes contain Trichoderma, a biocontrol organism. Its growth may look white and downy, then turn yellowish-green or compact green. The distributor describes this as beneficial, not mold, and pre-soaking solutions reduce its appearance.

Q: How do I know if the cubes are dry?
A: Squeeze a cube firmly to check moisture. Warm conditions can dry the cubes faster, so keep them thoroughly hydrated.

Q: Can I use them in soil and hydroponics?
A: Yes. Plant the cube directly into soil or a hydroponic system, indoors or outdoors.

Q: How do sponge cubes differ from loose starting mixes?
A: A cube is a single formed piece, so it transplants whole with the roots intact. Loose mixes need a separate container.