Wholesale 4.5" Square Plastic Pots for Nurseries & Greenhouses

Our 4.5 inch square nursery pots are engineered for commercial growers. These square nursery pots are perfect for seed starting, transplanting, and retail plant sales.

4.5 Inch Plastic Pots Dimensions

· Plastic 4.5 inch square pots size: 10.5cm (Top Diameter) x 8.5cm (Bottom Diameter) x 9.2cm (Height).

· Plastic 4.5 inch deep square pots size: 10.5cm (Top Diameter) x 8.5cm (Bottom Diameter) x 11.73cm (Height).

✅ These square 4.5 inch plant pots Material: PP. Color: Black (custom options available).

✅ OEM or ODM: Color, shape, size and logo. We will refund the mold cost for a large order.

✅ 4.5 inch pots for plants are eco-friendly. Matching square pot carrying trays are available.

Product Options

Available in both Standard and Deep Style. These 4.5 inch square seedling pots offer flexibility across a wide range of crops and growing systems.

🔹 Standard Style – SCP-450:

✅ Shorter profile, ideal for compact root systems.

✅ Fast-growing crops and quick-turn propagation.

✅ Perfect for bench growing and shallow trays.

🔹 Deep Style – SCP-450D:

✅ Taller depth, designed for plants with deeper root zones.

✅ Great for tomatoes, peppers, herbs, and woody cuttings.

✅ Reduces transplant shock and supports vigorous root growth.

Key Features

✅ Made from rigid and reusable polypropylene material.

✅ Tapered body with bottom drainage holes promote healthy root development.

✅ Fits standard 1020 flats and square tray inserts.

✅ Black promotes root zone warmth and uniform growth.

✅ Available in bulk quantities for growers and distributors.

Each pot features strong sidewalls, efficient bottom drainage, and a space-saving square footprint. Ideal for use in greenhouses, propagation trays, and automated nursery systems.

Common Applications

✅ Commercial seedling production.

✅ Transplanting from 3.5" or 2.5" pots.

✅ Container-grown cactus, succulents, vegetables and ornamentals.

✅ Retail-ready plant sales.

✅ Propagation in greenhouses and indoor farms.

Compared to 3.5 inch square nursery pots, 4.5 inch square pots provide increased soil volume.

For deeper root systems, see our deep option.

For early propagation, square 2.5 inch nursery pots may be more suitable.

Whether you're growing vegetables, herbs, perennials, or ornamentals, these 4.5" square plant containers deliver consistent results in high-volume operations.

👉 Contact us via vincentwilsongarden@gmail.com for volume pricing, pallet loads, and custom shipping options. Buy more save more!