When I first started watercolor painting, I had no idea what watercolor brushes to start with. I just knew I didn’t want to fight with my tools. I wanted a brush that felt natural in my hand, held enough water for long, fluid strokes, and gave me the freedom to work loosely while observing what was in front of me—not one that forced me into tight, rigid detail.
My approach to drawing and painting has always been observational. I start by looking at real life references or photos, focusing on large shapes created by light and form, then gradually refining with smaller shapes and edges. My brushwork reflects that same order: broad strokes first, details later, always keeping things loose and expressive. Choosing the right brushes helped me find that rhythm.
In this post, I’ll walk you through the brushes I recommend starting with—not from a textbook or old-school formula, but from real-world sketching and painting experience.
Key Points
- Start with a versatile round brush and avoid overloading on specialty sizes too early.
- Look for synthetic or synthetic blend brushes that hold water well but snap back quickly.
- Your brush should feel natural with how you like to work—try different types as you go.
What Watercolor Brushes to Start With as a Beginner
You don’t need a giant roll of 20 brushes. In fact, starting with fewer, well-chosen brushes will help you learn faster and develop your instincts for pressure, water control, and timing.
I found that with just two or three reliable brushes, I was able to experiment freely, build confidence, and focus on seeing rather than second-guessing my tools.
1. A Size 8 or 10 Round Brush (Synthetic or Synthetic Blend)
This is the workhorse.
A quality round brush in this size can handle everything from broad washes to tighter lines, depending on how you angle it and vary the pressure. I used one brush for almost everything when I first started. It gave me the freedom to play without being overwhelmed.
Synthetic brushes are more affordable and cruelty-free, and modern synthetic blends can hold water surprisingly well. Brands like Princeton Neptune, Escoda Versatil, and Da Vinci Casaneo all make excellent starter options. They keep their shape, have a nice snap, and load up enough pigment for smooth painting.
That water-holding ability is essential when you want to lay down a big, expressive wash without stopping halfway through to reload.
2. A Size 2 or 4 Round for Small Touches
I use this smaller round brush not for linework, but for crisp edges or tiny shapes after the main wash has dried. Think catchlights in the eye of a bird, or a single blade of grass breaking into the light.
This size also helps if you're painting small scenes in a travel watercolor book or doing detail work in a watercolor sketchbook. It gives you just enough control without getting fussy.
3. Optional: A Flat or 1/2″ Wash Brush
This one’s optional, but really handy.
A flat brush makes it easier to wet large areas of paper evenly. If you're working on cold press or textured paper, it also helps get pigment into the grooves without scrubbing. I often use a flat when blocking in skies or backgrounds with clean edges.
It can also help you experiment with fun watercolor techniques, like dragging, lifting, or creating sharp geometric shapes. If you're exploring how watercolor interacts with different paper types, this brush gives you more control.
If you want to go deeper into brush types and how they behave, I wrote a full breakdown of watercolor brushes for beginners that might help once you’ve tested the basics.
Why the Right Brush Helps With Looser, Observational Work
My watercolor practice is built around seeing—not stylizing.
I observe how light shapes an object, where shadows fall, and how edges soften or harden depending on the material. The brush I choose affects all of this. A good brush lets me follow what I’m seeing without stopping to wrestle with frayed hairs or weak pigment flow.
That means I can:
- Block in large abstract shadow shapes without reloading my brush every 5 seconds
- Taper a stroke from thick to thin in a single motion
- Add small accents at the right moment without ruining the flow
When I’m painting something subtle, like mixing natural skin tones or creating layered grey watercolor washes, the brush matters as much as the paint. It's what gives the paint its expression.
Common Mistakes When Starting With Brushes
There’s a lot of pressure to get the “right” tools, but honestly, most people start with too many brushes or the wrong kind of brush hair. Here’s what I’d avoid:
- Buying a giant brush set where half the brushes are poor quality or redundant. You won’t use most of them.
- Choosing natural hair brushes too early – they're expensive, delicate, and not necessary at the beginner stage.
- Going too small thinking you need tiny brushes to paint detail. Big brushes actually help you stay loose and expressive.
- Neglecting paper quality – even the best brush can’t perform well on flimsy paper. If you're still figuring out types of watercolor paper or want to try stretching paper, I recommend reading about painting on watercolor paper and the best tape to use.
Real-World Use: Brushes in My Sketchbook and Travel Kit
In my daily sketchbook, I mostly carry two brushes: a size 10 round and a small flat. That combo does everything I need for quick studies, looser expressive sketches, and light layering.
When I use a hot press watercolor sketchbook or experiment with layering in my best watercolor journals, I still rely on those same two brushes.
For larger, expressive work or experiments with watercolor pastels or ink and wash, I might pull out a mop brush or a wide flat—but I don’t travel with them.
You don’t need a full studio set to make strong, expressive work. It’s more about how you use what you already have.
Tips for Taking Care of Your Brushes
Brushes last longer if you treat them like tools instead of disposable supplies.
I try to rinse them thoroughly after each session, especially around the ferrule (where the bristles meet the handle). If paint dries in there, the brush starts to splay.
Other quick habits:
- Never leave your brush sitting in water for long periods
- Gently reshape the bristles with your fingers after washing
- Let them dry flat or upright (bristles up)
- Store them in a pouch or watercolor storage case to protect the tips
Even budget brushes can last a long time if you take care of them.
When You’ll Know It’s Time to Try New Brushes
After a while, you’ll notice how your painting habits are changing. Maybe you’re starting to layer more, explore dry brush textures, or get curious about specialty tools.
That’s a great time to branch out. Don’t upgrade everything at once—just grab one new brush and see how it changes your rhythm.
You might also want to test out non-brush tools like water soluble wax pastels or explore mixed approaches using watercolor in unexpected ways.
Eventually, you might even experiment with unconventional surfaces like canvas (yes, watercolor can be used on canvas), or learn how to flatten a warped watercolor painting once you start working larger.
But in the beginning, keep it simple.
Start Where You Are
If you’re still finding your rhythm, I recommend browsing the full watercolor hub on my site. It has everything I’ve written about supplies, mindset, paper, and color.
That includes:
- How to make your own color mixing chart for watercolor
- Understanding how watercolor paper is made
- Whether watercolors expire or how long they last
- Safety basics like are watercolor paints toxic?
- Answers to practical things like are watercolor paints washable?
I studied drawing and painting at CalArts, and even there I found that your tools matter less than how clearly you observe and how confidently you move. But a good brush makes that path smoother.