How to Fill Big Pots for Plants?

Filling large plant pots can be expensive and result in overly heavy containers. Here's how to efficiently and affordably fill those big pots:

Strategies for Filling Large Plant Pots

Instead of filling the entire pot with potting mix, use these strategies to reduce the amount of soil needed and make the pot lighter:

Reduce the volume: Add filler material to the bottom of the pot, taking up space that would otherwise be filled with soil.
Choose lightweight materials: Opt for lightweight options to minimize the pot's overall weight, making it easier to move.

Here are several materials you can use as filler in large plant pots:

Plastic Bottles (Water and Soda): Clean, empty plastic bottles are excellent lightweight fillers. Make sure the caps are securely fastened to prevent collapsing.
Nursery Pots (Unused): Place upside-down nursery pots at the bottom of the larger pot.
Packing Peanuts (Non-Dissolvable): These are very lightweight and effective but ensure they are non-dissolvable to avoid issues when watering. Note: some gardeners worry about chemicals leaching into the soil, so consider an alternative if you are concerned.
Pool Noodles (Old): Cut pool noodles into smaller sections to fill space.
Foam Take-Out Containers (Clean): These can be bulky, so break them down a bit if needed.
Styrofoam Packing Materials: Similar to packing peanuts, but in larger shapes.
Aluminum Soda Cans: Crushed cans take up less space.
Pine Cones: An organic option that will eventually decompose, contributing to the soil. This option adds drainage as well.
Gravel or Rocks: While not as lightweight, a layer of gravel at the very bottom can improve drainage, especially in pots without drainage holes. However, excessive gravel can actually impede drainage.

Choose your filler: Select the material based on availability, budget, and environmental concerns.
Add the filler: Place the filler material in the bottom of the pot, filling it to the desired level. Leave enough space for the plant's root ball and a layer of potting mix on top.
Add a barrier (optional): Consider adding a layer of landscape fabric or burlap on top of the filler material to prevent the potting mix from sifting down and mixing with the filler. This makes it easier to reuse the potting mix later.
Add potting mix: Fill the remaining space with high-quality potting mix suitable for your plants.
Plant your plant: Plant as usual!

Cost-effective: Reduces the amount of potting mix needed.
Lightweight: Makes pots easier to move.
Improved Drainage (sometimes): Some materials, like pine cones or a small layer of gravel, can improve drainage.

By using these methods, you can effectively fill large plant pots, save money, and make your container gardening experience more manageable.