Kotohime Japanese maple

Kotohime Japanese maple key facts

Growing Difficulty

Intermediate

Lifespan

Little data for the cultivar

Size

Extremely dwarf; easy to keep as mame to shohin bonsai

Watering

Fertilizer (spring and autumn, sparingly)

Light & placement

Sun and good airflow; it dislikes afternoon sun, so shade 50–70% from the end of the rainy season to early September to prevent scorch

Watering

Tiny pots dry very fast: about twice daily in spring, 2–3 in summer, at the soil. Summer drought causes scorch and dieback

Temperature & overwintering

Cold-hardy (A. palmatum: USDA zone 5). After leaf fall let it see 2–3 frosts, then shelter from drying wind and late frost

Soil & repotting

Free-draining mix; repot around March before budbreak, every 2–3 years (1–2 for mini), pruning roots to encourage fine feeders

Fertilizer

Organic fertilizer in mid-April once leaves harden, a top-up in May; autumn feeding from mid-August, finishing in September to aid colour

Pruning & styling

Internodes are short, so simply removing the central bud builds ramification. Avoid full defoliation; thin leaves instead. Prune around leaf fall

Pests & cautions

Aphids on new shoots and powdery mildew from the rainy season. The thin leaves are easily damaged by sprays—follow label rates

About Kotohime Japanese maple

Kotohime is a leading yatsubusa Japanese maple with tiny leaves and dense branching, ideal for mame and shohin bonsai in small pots. It also propagates easily from cuttings.

7 things to know before growing Kotohime Japanese maple

1. 1Placement

   Kotohime prefers a spot with good sun and airflow, but strong direct summer sun can scorch its leaves. Because its leaves are extremely small, moving it to bright partial shade in the afternoon is safer, especially while it's still in a small pot.

2. 2Watering

   Because Kotohime is grown in a small pot as an extremely dwarf variety, the soil surface dries out quickly. Check the soil regularly during the growing season and water thoroughly once it dries.

3. 3Soil

   Since roots fill a small pot quickly, a well-draining, well-aerated bonsai soil mix is important. An akadama-based blend is a common choice.

4. 4Repotting

   Because mame and shohin-sized pots fill with roots relatively fast, Kotohime tends to need repotting at shorter intervals than larger bonsai. The best time is just before new growth starts, when the roots can be trimmed and refreshed.

5. 5Pruning and Pinching

   To make the most of its yatsubusa branching habit, pinch back new shoots regularly to encourage more branches to form. This ongoing care is what builds up the fine, twiggy silhouette Kotohime is known for.

6. 6Seasonal Care

   Its tiny leaves are sensitive to heat and drying out, so watch for leaf scorch and dehydration in summer. In winter, the roots in a small pot are more exposed to cold, so some frost protection is worth considering during the coldest stretches.

7. 7Choosing a Good Specimen

   Kotohime's character shows in its small leaves and tightly spaced internodes that create fine branching. When choosing a tree, look for even, well-distributed branching and leaves, and check that there's no dead wood.

Frequently asked questions about Kotohime Japanese maple

Q.Is Kotohime suitable for beginners?

A.It's generally considered a variety for intermediate growers, since its tiny leaves and small pot mean basic care like watering needs a bit more attention. Once you're comfortable with bonsai fundamentals, it becomes easier to manage over time.

Q.How large does Kotohime typically grow?

A.It's an extremely dwarf variety that's easy to maintain at mame or shohin bonsai size. It can stay in a small pot while keeping a compact form for a long time.

Q.Can Kotohime be propagated from cuttings?

A.Yes, Kotohime is known as a variety that roots readily from cuttings. This makes it possible to grow new plants from an existing tree and gradually build up your collection.

Q.What makes Kotohime different from other Japanese maples?

A.Kotohime is a leading yatsubusa maple variety, meaning it has unusually small leaves and short internodes. This lets it develop a dense, finely branched silhouette even in a small pot.

Q.How often does Kotohime need repotting?

A.Because it's grown in a small pot, its roots fill the space relatively quickly, so it tends to need repotting more often than larger bonsai. It's best done just before new growth starts, checking root condition each time.

Handy Growing Tools for Kotohime Japanese maple

Learn more about Kotohime Japanese maple in the encyclopedia

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