Automatic Drip Irrigation Self-Watering Spike | DIY Plant Waterer

Keep your indoor and outdoor plants perfectly hydrated — even when you're away! This Automatic Drip Irrigation Self-Watering Spike turns any standard plastic bottle (18–25 mm bottle mouth) into a hands-free watering device. Simply fill a bottle, attach the spike, and let gravity do the work. The adjustable flow taper design delivers a slow, steady drip directly to the root zone, promoting healthy, even plant growth without waterlogging.

Made from durable, lightweight plastic, this reusable garden gadget is perfect for potted plants, flowerpots, raised beds, and indoor houseplants. Whether you're a busy plant parent, a weekend gardener, or heading out on holiday, this budget-friendly self-watering kit gives you peace of mind that your plants are cared for.

Key Features

• 🌿 Automatic Slow-Drip Irrigation: Consistent, precise water flow keeps soil moisture balanced
• 🔧 DIY-Friendly Setup: No tools required — simply press into soil and attach your bottle
• 🪴 Universal Bottle Fit: Compatible with 18–25 mm bottle mouths (standard plastic bottles)
• 💧 Adjustable Flow Rate: Taper design allows flow customisation to suit different plant needs
• ♻️ Reusable & Eco-Friendly: Repurpose empty bottles for a sustainable watering solution
• ⚖️ Ultra-Lightweight: Only 20g — easy to move, reposition, and store
• 🎨 Colour: Sent at random (assorted colours)

Specifications

How to Use

1. Fill a standard plastic bottle (18–25 mm mouth) with water.
2. Screw or press the drip spike onto the bottle opening.
3. Insert the spike firmly into the potting soil near the plant's roots.
4. Invert the bottle so water slowly drips into the soil.
5. Adjust the spike depth to control the drip rate.

Perfect For

• Potted houseplants & windowsill herbs
• Flowerpots on balconies & patios
• Vegetable garden containers
• Holiday or vacation plant care
• Busy gardeners who want low-maintenance watering

Pair this with other great garden and kitchen essentials from our store:

• 1.4W Solar Bird Bath Fountain Pump – Pond, Garden & Fish Tank
• 1-Inch Impact Rocker Sprinkler – Adjustable Rotating Irrigation

For more gardening and water-conservation tips, visit the EPA WaterSense Watering Tips page.

Frequently Asked Questions

Q: What bottle size fits this automatic drip irrigation spike?

A: This self-watering spike is compatible with standard plastic bottles with a mouth diameter of 18–25 mm, which covers most common water and soft drink bottles.

Q: How do I control how fast the water drips into my plant pot?

A: The taper drip design allows you to adjust the flow rate by how deeply you insert the spike into the soil — deeper insertion slows the drip, while a shallower position allows a faster flow, giving you flexible control for different plant watering needs.

Q: How long will one bottle of water last using this drip irrigation spike?

A: This depends on the size of the bottle and the flow rate adjustment. Typically, a 500 ml bottle can last 1–3 days for a small potted plant, making it ideal for short holidays or busy schedules.

Q: Can I use this drip irrigation spike outdoors as well as indoors?

A: Yes! The durable plastic construction makes it suitable for both indoor pots and outdoor flowerpots, balcony planters, and garden containers.