Using Your Can

Get more from your Haws can. How gravity and flow work, how to choose and fit a rose, and how to water different plants and spaces.

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Outlet pressure and flow: the physics of pouring

Haws watering cans work on gravity alone, no pumps, no pressure systems. This article explains how spout geometry and outlet design create controlled, predictable flow, and why that matters when you're watering.

Understanding roses: what they are and how they work

The rose is the attachment that turns a single stream into a spray. This article explains what a rose is, how it attaches to the ferrule, the difference between a rose and a downspout, and which type comes with each can.

Choosing a rose: spray weight, face shape, and face orientation

Choosing the right rose comes down to spray weight, face shape, and orientation. This article explains each variable in the Haws Spray Scale and how they affect the spray — helping you match the right rose to the task.

Rose compatibility: which roses fit which cans

Not all roses fit all Haws cans. Compatibility depends on the ferrule, the connector at the spout end. This article explains which ferrule types accept which roses, and how to identify yours before buying.

Watering technique: getting the best from your can

Good technique makes a real difference to your plants, and to how easy the can is to use. This article covers how to start and stop the spray cleanly, how to hold and move the can, and how to use rose orientation to your advantage.

Watering techniques for containers, indoors, borders,and hanging baskets

Different planting environments need different approaches. This article explains how to choose the right can and rose for containers, borders, indoor plants, and hanging baskets, with guidance on what matters in each.

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