--- title: "How to Paint Hydrangeas in Sumi-e: The Mokkotsu (Boneless) Technique in Three Steps" description: "Paint soft hydrangea petals in ink without outlines: pale ink, bleeding for depth, dark ink for details. Three steps, ink cues, common fixes and a video." image: https://www.sumieart.art/hubfs/ajisai.jpg --- [Ensō円 相](https://www.sumieart.art/) [Article](https://www.sumieart.art/en/blog?hsLang=en) [About](https://www.sumieart.art/en/about?hsLang=en) [JA](https://www.sumieart.art/blog/suibokuga-ajisai-how-to-draw-mokkotsuho) / [EN](https://www.sumieart.art/en/blog/how-to-paint-hydrangea-sumi-e) [Article](https://www.sumieart.art/en/blog) — Suiboku # How to Paint Hydrangeas in Sumi-e: The Mokkotsu (Boneless) Technique in Three Steps Paint soft hydrangea petals in ink without outlines: pale ink, bleeding for depth, dark ink for details. Three steps, ink cues, common fixes and a video. 2026.11.02 ![Hydrangeas and clematis painted in sumi-e by Tohun Kobayashi: a hydrangea of clustered florets at the upper left and dark-ink clematis below and to the right, with gold added to the flower centres](https://www.sumieart.art/hubfs/ajisai.jpg) Hydrangeas and clematis painted in sumi-e by Tohun Kobayashi: a hydrangea of clustered florets at the upper left and dark-ink clematis below and to the right, with gold added to the flower centres Mokkotsu, the boneless technique, means painting shapes with washes of ink and the way ink bleeds into paper, without drawing outlines. It suits the soft petals of hydrangeas. This guide shows you how to paint hydrangeas in sumi-e in three steps: lay down the petals in pale ink, use bleeding to add depth, and finish the flower centres, calyxes and leaf veins in dark ink. Along the way you will find cues for how dark the ink should be, fixes for the most common problems, answers to frequent questions, and a demonstration by Tohun Kobayashi of Kokusai Bokuyukai that shows how the brush moves. If you are trying mokkotsu for the first time, read it through once before you start. ## Before You Paint Hydrangeas | Mokkotsu and Why It Suits Them ### What Is Mokkotsu? As its name, boneless, suggests, mokkotsu leaves out the bones of a picture, its outlines. Shape, volume and shadow are all made with areas of ink and the way the ink bleeds. For a fuller introduction to the technique, see [What Is Mokkotsu?](https://www.sumieart.art/en/blog/mokkotsu-boneless-painting-technique). Its opposite is hakubyō, painting in outline only, which defines a form with fine lines and suits precise contours. Mokkotsu works the other way, and is at its best with soft, moist textures. ### Why Hydrangeas Suit It What look like the petals of a hydrangea are really the sepals of its decorative florets. They are rounded, and their edges are not sharp. Laying pale ink down in areas and letting it bleed brings out their softness, their translucency and the damp air of early summer quite naturally. Try to draw them in outline and they tend to look stiff, which is why hydrangeas and mokkotsu go so well together. ### What You Need | Item | What to choose | Used for | | --- | --- | --- | | Round brush (medium to large) | An absorbent sheep-hair or mixed-hair brush | Laying the petals and painting the leaves | | Small brush | A fine detail brush with a tip that comes to a point | Flower centres, calyxes and leaf veins | | Ink | An ink stick ground on an inkstone | Adjusting the tones | | Paper | Gasenshi or handmade washi, which bleeds more than practice paper | Finished pieces | | Inkstone and small dishes | Grind the ink, then dilute it with water to set each tone | Preparing pale and dark ink | | Water pot | For rinsing the brush and adjusting the water in it | — | If you are just starting out, see also our guide to [sumi-e tools](https://www.sumieart.art/en/blog/sumi-e-essential-tools). ## How to Paint Hydrangeas in Three Steps ### Step 1: Lay Down the Petals in Pale Ink 1. Make the pale ink. Dilute ground ink with water until it looks like a grey you can see through. When you tilt the brush against the rim of the inkstone, only a little ink should gather there 2. Load the round brush, then lightly squeeze off the excess water on the rim of the inkstone. Too much water makes the later bleeding spread too far, so this small step decides how the painting turns out 3. Thinking of an oval, lay each petal with the belly of the brush in a single stroke. Do not try to draw an outline; set the area down as if you were stamping it. Relax and let the spring of the brush do the work 4. Arrange five to seven petals in a ring to make one floret. Group several florets to build the round head of the flower, letting neighbouring petals overlap slightly for a natural density Tip: if you paint petals at the same time, the ink can mix too much. Leave a short pause between petals and check how dry they are as you go. ### Step 2: Use Bleeding to Add Depth 1. Wait until the petals are half-dry: just before the surface turns from glossy to matt is the best moment to use bleeding 2. Load the brush with a little pale ink or plain water and touch it gently to the base of a petal, on the side towards the centre. The water is drawn into the existing ink and a natural gradation spreads 3. Control the direction and strength of the bleeding with the amount of water: more water for a stronger effect, a well-squeezed brush to keep it small 4. Looking over the whole flower head, keep the petals at the back paler and those at the front a little darker. This adds to the sense of volume ### Step 3: Add Centres, Calyxes and Leaf Veins in Dark Ink 1. Make sure the petals are completely dry before you move on to dark ink; dark ink on damp petals bleeds where you do not want it to 2. Load the small brush with dark ink, close to full strength, and place a few small dots at the centre of each floret. Dots of uneven size look more natural 3. Add the calyxes and stems with fine lines. Think of each calyx as a slim triangle growing from the base of the petals 4. For leaves, lay the leaf shapes in mid-tone ink with the round brush, mokkotsu-style. When they are dry, add the veins in dark ink with the small brush, running from the main vein out to the side veins, from the centre outwards. For practising lines like these, see [How to Practise Sumi-e Brushwork](https://www.sumieart.art/en/blog/sumi-e-brushwork-practice-drills) ## Watch the Demonstration | Brush Movement and Ink Tones How much ink the brush holds, how much water is in it and when to add bleeding are hard to explain in words; watching is the surest way to learn them. Things to watch for in the video: - How much water is squeezed out on the rim of the inkstone after the brush is loaded with pale ink - The angle and speed of the brush as a single petal is laid in one stroke - How the tip touches a half-dry petal at the moment bleeding is added - How upright the brush is, and how much pressure is used, when the centres are dotted in dark ink - The single movement of the small brush as a leaf vein is pulled, without stopping halfway The video is Summer Flowers, Part 2 from Kokusai Bokuyukai, demonstrated by Tohun Kobayashi. It is the second half of a long painting that gathers summer flowers on one sheet, and the hydrangea begins at 5:35; the video below starts there. Watch how each floret is placed with the tip of the brush, growing paler towards the outside. In this work, gold is added to the flower centres. ## Common Problems and How to Fix Them ### When the Ink Bleeds Too Far The cause is usually too much water in the brush, or damp paper. - After loading the brush, always squeeze off the excess water on the rim of the inkstone - Check how damp the paper is before you paint a new petal. On humid days the paper absorbs moisture from the air and bleeds more easily; drying it lightly with a hairdryer before you paint helps - If unwanted bleeding starts to spread, press a dry tissue or absorbent paper on it quickly to soak up the ink and limit the damage ### When the Petals Lose Their Shape With no outlines, the movement of the brush becomes the shape itself. - Paint each petal in one movement, without hesitating. Any wavering shows up directly in the shape - As practice, paint just the petal shape ten to twenty times on practice washi. [How to Practise Sumi-e Brushwork](https://www.sumieart.art/en/blog/sumi-e-brushwork-practice-drills) will help ### When the Leaves Turn Out Too Dark - Before painting the leaves, check the tone of your ink in a dish, and keep it separate from the pale ink for the petals - Aim for mid-tone ink, between pale and dark, for the leaves; it balances well against the flowers. Ink looks darker when it is wet and dries a little lighter, so a tone that seems slightly too dark is often just right once dry ## Frequently Asked Questions ### What kind of brush is best for painting hydrangeas? An absorbent round brush, medium to large, is best for laying the petals; sheep-hair brushes and mixed-hair brushes hold plenty of ink and suit painting a petal in a single stroke. Use a fine detail brush for the centres, calyxes and leaf veins. Starting with one round brush and one small brush makes things easy. ### How dark should the ink be? Use the three ink tones: dark, mid-tone and pale. Paint the petals in pale ink (pale enough to look like a grey you can see through), the leaves in mid-tone ink, and the centres, veins and calyxes in dark ink close to full strength. Preparing all three tones before you start means you will not have to stop and think while you paint. ### What should I do if the ink bleeds too much? There are two main causes. Too much water in the brush: wipe it on the rim of the inkstone or a cloth before it touches the paper. Damp paper: especially in the rainy season the paper itself holds moisture, so dry it lightly with a hairdryer or leave it open in a dry room for a while before use. If bleeding starts to spread, pressing absorbent paper on it quickly is a good emergency fix. ### What is the difference between mokkotsu and hakubyō? Mokkotsu shows form, volume and texture with areas of ink alone, without outlines. Hakubyō defines a form with outlines alone, building it up from fine lines. Soft hydrangea petals suit mokkotsu, which gives them a gentle presence through washes and bleeding; hakubyō is often used for subjects with crisp edges, such as chrysanthemum petals, and for preparatory drawings. ### What should I practise after hydrangeas? The lotus is a good next step: it is another early-summer to summer subject, and its large petals and leaves apply what you learned with hydrangeas. The Four Gentlemen (plum, orchid, bamboo and chrysanthemum), staples of ink painting, let you practise both washes and lines in a balanced way. ## In Closing The three steps for painting hydrangeas in sumi-e: - Lay down the petals in pale ink: use the belly of a round brush, one stroke per petal, and always squeeze off excess water on the rim of the inkstone - Add depth with bleeding: touch the half-dry petals with water to create natural gradations - Finish with dark ink: when everything is dry, add the centres, calyxes and leaf veins with a small brush The heart of mokkotsu is controlling water. Do not worry about failures; start by painting petal shapes again and again on practice washi. The load of the brush, the drying and the timing of the bleeding are things your hand learns rather than your head. For another subject painted in the same boneless way, see [How to Paint a Turnip](https://www.sumieart.art/en/blog/how-to-paint-turnip-sumi-e); for a flower built from layered petals, see [How to Paint Chrysanthemums](https://www.sumieart.art/en/blog/how-to-paint-chrysanthemum-sumi-e). The [Four Gentlemen](https://www.sumieart.art/en/blog/four-gentlemen-sumi-e) and [Sumi-e Painting for Beginners](https://www.sumieart.art/en/blog/sumi-e-for-beginners) are good places to continue. ## RelatedArticle ### [![Hasegawa Tōhaku's Pine Forest: How to Look at Japan's National Treasure Screens of Mist and Ink](https://www.sumieart.art/hubfs/shorinzu/shorinzu_featured_1200x630.jpg) Suiboku / Japanese Art / Sumie Hasegawa Tōhaku's Pine Forest: How to Look at Japan's National Treasure Screens of Mist and Ink](https://www.sumieart.art/en/blog/hasegawa-tohaku-pine-forest) ### [![What Is Zenga? 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In Jin's work, letterforms, brushed lines, and ma — the resonant negative space at the heart of sumi-e — come together in compositions that speak across cultures. This East–West synthesis grounds an ongoing exploration of artistic possibilities that reach beyond cultural boundaries. Jin currently serves as a Director of the International Association of SUMI, and was recently honored with the Special Jury Award — the Arisumi Mitamura Prize — at Art Beyond Boundaries. Rooted in tradition yet attentive to the present, Jin continues to share a contemporary vision of sumi-e with audiences around the world. Ensō A bilingual platform dedicated to the aesthetic sensibility of Japan through the art of ink painting. [Article](https://www.sumieart.art/en/blog?hsLang=en) [About](https://www.sumieart.art/en/about?hsLang=en) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Jin", "url" : "https://www.sumieart.art/en/blog/author/jin-e" }, "dateModified" : "2026-11-02T13:50:30.728Z", "datePublished" : "2026-11-02T11:30:23.000Z", "headline" : "How to Paint Hydrangeas in Sumi-e: The Mokkotsu (Boneless) Technique in Three Steps", "image" : [ "https://www.sumieart.art/hubfs/ajisai.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.sumieart.art/en/blog/how-to-paint-hydrangea-sumi-e", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject" } } } ``` ```json { "@context" : "https://schema.org", "@type" : "Article", "about" : { "@type" : "Thing", "name" : "Mokkotsu (boneless technique)" }, "author" : { "@type" : "Person", "name" : "Jin", "url" : "https://www.sumieart.art/en/about" }, "dateModified" : "2026-11-02", "datePublished" : "2026-11-02", "description" : "Paint soft hydrangea petals in ink without outlines: pale ink, bleeding for depth, dark ink for details. 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