Moss Pole Add-Ons & Extensions

Already growing with GrowGrid? Keep climbing. These individual extensions and accessories snap directly onto any existing GrowGrid Moss Pole — twist, lock, and grow. No tools required.

All pieces are 3D printed in Omaha, Nebraska from eco-friendly, plant-based PLA. Forever expandable. Always compatible.

New to GrowGrid? Start with the Moss Pole Starter Pack →

• 8-inch Extension — The core building block of your GrowGrid Moss Pole system. Each extension adds approximately 8 inches of height and packs with sphagnum moss or coir for continuous aerial root support. Just twist to lock onto your existing pole whenever your plant is ready for more height.
• Stake — An effective base for lighter plants and smaller pots. The GrowGrid Stake pushes directly into your pot soil to anchor your moss pole in place. Perfect for younger plants or smaller setups where a full stabilizing base isn't needed yet.
• Funnel Cap — The easiest way to keep your moss pole hydrated. Simply place the funnel cap on top of your pole and water directly through it — moisture travels down through the moss or coir for deep, even hydration without constant misting. Stock up so you always have a spare.
• Standard Cap — The finishing touch for your GrowGrid Moss Pole. Fits cleanly on top of your pole for a polished, intentional look. Use it when your plant has reached its current height and you want a clean top while you wait for the next growth spurt.

Not sure which add-on you need?

• Just starting out → Starter Pack has everything you need
• Plant growing taller → grab an 8-inch Extension
• Heavy vines or large pot → upgrade to the Stabilizing Base
• Want hands-free watering → Funnel Cap
• Ready to top off your pole → Standard Cap finishes the look

All GrowGrid Moss Pole accessories are fully compatible with the Starter Pack and each other. Mix, match, and keep growing.