Drawings Trees: Mistakes, Da Vinci’s Rule & Baum Test

Anyone who’s picked up a pencil to sketch a tree knows the feeling — that lumpy trunk, branches that seem to go everywhere except where you want them. It’s frustrating, but the real secret isn’t talent. It’s understanding a handful of natural rules and a few psychological tricks. This guide blends step-by-step methods from experienced art teachers with a surprising insight from psychology and physics, giving you a fresh way to see every tree you draw.

Common tree drawing guide steps: 7 (HappyFamilyArt) · Da Vinci’s rule of trees: Branch thickness decreases proportionally · Psychologists use the Baum test: Since the 1960s · Top Pinterest board curated drawings: 290 ideas

Four key facts bring the research together — covering the number of guides studied, the age of the principles, and their reach.

What are common mistakes when drawing trees?

The biggest trap is treating every branch the same. Real trees taper, twist, and overlap. Here are the errors that beginners repeat most often.

Overuniform branches

• Branches should be thicker near the base and narrower toward the tip, as HappyFamilyArt points out. Drawing them all the same width makes the tree look stiff and unnatural.
• Vary the angle and direction — trees in nature rarely branch symmetrically.

Ignoring perspective

• Emily’s Notebook stresses starting with the horizon line and the tree’s proportion relative to it. A tree drawn without perspective floats on the page.
• Check the viewpoint: are you looking up, straight on, or down? The trunk and branches shift shape with the angle.

Same line weight throughout

• Use lighter lines for areas farther away. John Muir Laws recommends drawing front layers darker, successive layers more lightly.
• Avoid dark outlines early — a YouTube tutorial from Circle Line Art School suggests building shapes gradually.

Neglecting the crown shape

• The Virtual Instructor advises sketching the overall contour of the leaf mass before adding internal detail. Without that big shape, the tree looks like a collection of disconnected blobs.
• Define the silhouette first, then place branches inside it.

How to get good at drawing trees?

Improvement isn’t about drawing a hundred identical trees — it’s about drawing a few with deliberate awareness. The most effective methods blend observation, structure, and feedback from established tutorials.

Practice daily observation

• Emily’s Notebook says the first step is “consider the generic shape of the tree” and the horizon line. Go outside, sketch one tree per day, and note how branches split and taper.
• Keep a small sketchbook — even 5‑minute studies build pattern recognition.

Study tree anatomy and branching patterns

• Da Vinci’s rule — that the cross‑sectional area of a parent branch equals the sum of its daughter branches — is a mathematical guide used in 3D tree generation tools like L‑systems (Wikipedia). It ensures realistic taper.
• Look at how different species branch: oak (spreading, irregular), pine (whorled, straight), willow (drooping, fine).

Use step-by-step tutorials

• HappyFamilyArt’s 7‑step approach is one of the most shared: start with a line and crown shape, then main branches, then tapering trunk, then shading with side of pencil.
• Follow a structured guide at least once — it forces you to respect order (contour → trunk → branches → texture → ground).

Analyze works of master artists

• Look at how Rembrandt or Van Gogh handled tree shapes — note where they added detail and where they left blank space.
• Pinterest boards, like one with 290 curated ideas, offer a quick library of styles to borrow from.

What is the rule for drawing trees?

Behind every realistically drawn tree lies a quiet mathematical principle — one that Leonardo da Vinci scribbled in his notebooks centuries ago.

Da Vinci’s rule of branch taper

• Da Vinci observed that the thickness of a tree branch, when squared, relates to the thickness of its offshoots. In modern terms, the cross‑sectional area of the parent branch equals the sum of the areas of the daughter branches. This is documented in his notebooks and later formalized in fractal geometry (Wikipedia – Fractal).
• Applying this rule to your drawing means that as you divide the trunk into two or more branches, each new branch should be noticeably thinner, but the total “wood volume” stays consistent.

Fractal nature of tree growth

• Tree branching is a natural fractal — the same pattern repeats at smaller and smaller scales. John Muir Laws echoes this by recommending you draw branches in layers from front to back, each layer lighter and less detailed.
• Software like The Grove (3D tree modeller) uses L‑systems to implement Da Vinci’s rule, creating trees that look biologically plausible.

Proportional thickness reduction

• A common simplification: each new branch should be about half to two‑thirds the diameter of the one it splits from. HappyFamilyArt explicitly notes that “branches should be thicker near the base and narrower toward the tip.”
• When drawing a realistic tree, keep checking that your trunk tapers smoothly and that each fork respects this proportional decrease.

Why do psychologists ask you to draw a tree?

It sounds like an art class exercise, but the “draw‑a‑tree” test — called the Baum test — has been a tool in clinical psychology since the 1960s. The way you sketch a tree can reveal more than you expect about your emotional state.

History of the Baum test

• Developed by Swiss psychologist Charles Koch in the 1950s, the Baum test is a projective assessment where the subject draws a tree and the psychologist interprets elements like roots, trunk, crown, and ground line (Wikipedia – Baum test).
• It’s used alongside other projective tests (like the Rorschach) to assess personality and emotional functioning, especially in children and adolescents.

How tree drawings reveal personality traits

• Psychologists look at the size of the tree (confidence vs. insecurity), the thickness of the trunk (ego strength), the presence of roots (grounding and stability), and the shape of the crown (intellectual or emotional focus).
• A tree drawn with no ground contact, for example, may indicate a feeling of instability — a warning a beginner pencil tutorial also makes about making trees “float.”

Common interpretations

• Detailed roots: strong connection to reality or possibly anxiety about security.
• Empty or tiny crown: withdrawal or low energy.
• Broken or scarred trunk: trauma or emotional wound.
• The absence of a ground line: feeling unanchored.

The catch: drawing a tree for psychological assessment is different from drawing one for art. In therapy, there are no “bad” drawings — every line is a clue. For the artist, however, knowing these interpretations can add a layer of self‑awareness to the sketchpad.

How to sketch simple trees?

If you’ve never drawn a tree that you liked, start simple. The easiest approach strips the process down to three phases: shape, structure, and shade.

Start with basic shapes

• Draw a rough oval for the crown (the leafy mass) and a cylinder for the trunk. The Virtual Instructor recommends starting with light lines and focusing on the outer contour.
• Add the horizon line to anchor the tree. Emily’s Notebook suggests checking the proportion of the trunk to the crown relative to that line.

Add simple branching patterns

• Divide the crown into major clumps of leaves (The Virtual Instructor calls them “clumps”). Draw one or two thick branches reaching toward those clumps.
• Work front to back — John Muir Laws explains that overlapping layers give depth.

Use minimal detail for quick sketches

• Forget drawing every leaf. A beginner YouTube tutorial suggests scribbling leaf shapes in circular motions and reserving detail for a few high‑contrast areas.
• Keep the pencil grip light. The same tutorial warns against dark outlines before the shape is developed.

Practice on easy trees

• Pine and willow are forgiving: pine has simple layered branches, willow has fine drooping lines that hide structural mistakes.
• For a first real attempt, try an oak tree step by step — Circle Line Art School’s video walks through loose trunk sketch, main branches, and gradual shading.

Step-by-Step: How to Draw a Tree Like an Artist

This consolidated guide merges the best practices from the six sources we analysed. Follow these 8 steps for a tree that looks alive, not stiff.

1. Define the contour. Lightly sketch the overall silhouette of the tree (crown and trunk). The Virtual Instructor emphasizes getting the outer shape before internal detail.
2. Mark the horizon and proportion. Draw the ground line and check the trunk‑to‑crown ratio. Emily’s Notebook suggests thinking about viewpoint early.
3. Draw the main branches. From the trunk, extend 2‑4 major branches. Apply Da Vinci’s rule: each branch should be thinner than its parent (HappyFamilyArt stresses taper).
4. Layer secondary branches. Add smaller branches from front to back. John Muir Laws advises drawing front layers darker, back layers lighter.
5. Shape the crown with clumps. Group leaves into 3‑5 clumps at branch ends (The Virtual Instructor). Leave gaps to show sky through the tree.
6. Add shading with side of pencil. HappyFamilyArt recommends long strokes for the trunk and sideways scribbling for the crown, always consistent with sun direction.
7. Add texture to trunk and branches. Use short, curved lines for bark. Don’t overdo it — a YouTube tutorial warns against adding detail everywhere.
8. Draw ground contact and shadow. A shadow under the tree prevents the floating effect. The same tutorial says this single step can make your drawing look finished.

Confirmed facts vs. what remains unclear

Quotes from the instructors

“The first thing you should do when drawing a tree is consider the generic shape of the tree and the horizon line.”

Emily’s Notebook (art education blog)

“Tree drawing is all about branches and crown balance. The trunk should be thicker at the base and roots and narrower toward the top.”

HappyFamilyArt (family art tutorial site)

“Draw trees front to back — start with the parts closest to the viewer and move progressively backward, each layer drawn more lightly.”

John Muir Laws (naturalist and art educator)

Final word: master the branch, master the tree

Every tree drawing struggle comes down to two things: seeing the structure before the detail, and respecting the natural tapering of branches. The beginners who improve fastest are the ones who combine daily observation with a structured method — the same sequence repeated until it becomes instinct. For the artist holding a pencil, the choice is simple: spend ten minutes on silhouette and taper before you shade a single leaf. Skip that, and you’ll spend an hour fixing a tree that never quite feels real.

Leonardo’s mathematical approach to tree drawing is part of his larger body of work, which is examined in detail in his complete artwork guide.

Frequently asked questions

We also have a related guide on How to Draw a Face: Proportions & Step‑by‑Step Guide and an informative article on Parts of the Ear: Anatomy, Diagram & Functions which explores visual anatomy and form.