Treevaset

Treevaset

Treevaset logo with a stylized bonsai tree inside a turquoise circle, symbolizing the brand’s bonsai sets and online shop.

EU delivery included from €70

Acer palmatum ‘Seigen’ spring foliage – delicate pink-red emerging leaves
Acer palmatum ‘Seigen’ young pre-bonsai new shoots with soft pink-red leaves
Acer palmatum ‘Seigen’ young pre-bonsai sapling with visible branching structure in black nursery pot
Close-up of Acer palmatum ‘Seigen’ red-green spring leaves under sunlight
Acer palmatum ‘Seigen’ foliage detail – refined leaf shape and seasonal colour

Note for buyers: Each tree is unique. Photos are provided for reference only. Some images may show a wired plant to illustrate potential shaping. The tree you receive will be natural and unwired. Upon request, we can provide current photos from the available batch before purchase.

Acer palmatum ‘Seigen’ — Characteristics & Bonsai Use

‘Seigen’ is one of the rarest and most sought-after Acer palmatum cultivars for bonsai, displaying a spring colour that few other varieties can match. New foliage emerges in a very intense, light red that borders on purple, then gradually turns light green as the season progresses. In autumn, leaves develop strong red to orange tones before dropping. The colour intensity in spring alone makes this cultivar a standout in any collection.

The cultivar has a semi-dwarf, upright growth habit with medium vigour and medium-length internodes. Leaf size is moderate, well suited for bonsai proportions. Bark is smooth throughout development, showing light green with distinctive red and pinkish tones — an unusual trait that adds visual interest even during the leafless season. In open ground, ‘Seigen’ reaches just 1 to 2 metres, keeping proportions naturally compact.

For bonsai purposes, the combination of moderate growth, manageable internodes, and extraordinary spring colour makes ‘Seigen’ particularly well suited for shohin and display-oriented compositions where colour is the primary design feature.
Cultivation note: ‘Seigen’ develops its most intense spring purple-red with good morning light exposure. The bark’s pinkish tones are more pronounced on sun-exposed branches — position the tree to take advantage of this. Protect from strong afternoon sun in summer to avoid leaf scorch on the delicate spring foliage. This cultivar pairs exceptionally well with Beni Chidori and Orihime in a display collection, offering a distinctly different colour register.
  • One of the rarest Acer palmatum cultivars, with a very intense light red to almost purple spring flush that few other varieties can match.
  • Semi-dwarf upright habit with medium internodes, ideal for shohin and display-oriented bonsai.
  • Delivered at a minimum height of approx. 15 cm measured from soil line to apex.
Acer palmatum ‘Seigen’ Japanese Maple green-yellow leaves in soft sunlight

Acer palmatum ‘Seigen’

Plant origin: Japan

Sunlight

Full morning sun with light afternoon shade to protect foliage during peak heat.

Watering

Keep soil evenly moist but well-drained.

Fertilization

Regular feeding during spring and early summer to support balanced growth and colour.

Repotting

Every 2–3 years in early spring, before bud break.

Soil preference

Slightly acidic to neutral.

Pruning & Wiring

Prune after shoot hardening to control internodes and maintain structure.

Read full care guide

Why buy from Treevaset?

Grown specifically for bonsai

Our trees are cultivated from seed or cuttings with bonsai development in mind from the very beginning, not adapted later from ornamental nursery stock.

European distribution, limited batches

Selected Acer palmatum cultivars are made available in small, controlled batches, suitable for individual growers as well as clubs and collections.

Non-grafted, true-to-type plants

We only offer non-grafted cultivars to ensure consistent leaf size, internode length, and long-term behaviour true to each variety.

Support from experienced growers

We provide real, practical advice before and after purchase, based on hands-on experience.

Acer palmatum ‘Seigen’ – Japanese Maple for Bonsai (Young Pre-Bonsai)

Seigen is one of the rarest Acer palmatum cultivars, prized for its extraordinary light red to purple spring flush that few other Japanese maples can match. Smooth bark with distinctive pink tones adds winter interest. Compact adult size (1–2m) and semi-dwarf habit make it ideal for shohin bonsai. Non-grafted, cutting-propagated plants to preserve the true characteristics of the cultivar.

35,00 €

Out of stock

  • Back in stock notification

Get notified when this cultivar becomes available again.

Healthy Arrival Guarantee

Acer palmatum ‘Seigen’ spring foliage – delicate pink-red emerging leaves
Acer palmatum ‘Seigen’ young pre-bonsai new shoots with soft pink-red leaves
Acer palmatum ‘Seigen’ young pre-bonsai sapling with visible branching structure in black nursery pot
Close-up of Acer palmatum ‘Seigen’ red-green spring leaves under sunlight
Acer palmatum ‘Seigen’ foliage detail – refined leaf shape and seasonal colour

Note for buyers: Each tree is unique. Photos are provided for reference only. Some images may show a wired plant to illustrate potential shaping. The tree you receive will be natural and unwired. Upon request, we can provide current photos from the available batch before purchase.

Acer palmatum ‘Seigen’ – Japanese Maple for Bonsai (Young Pre-Bonsai)

Seigen is one of the rarest Acer palmatum cultivars, prized for its extraordinary light red to purple spring flush that few other Japanese maples can match. Smooth bark with distinctive pink tones adds winter interest. Compact adult size (1–2m) and semi-dwarf habit make it ideal for shohin bonsai. Non-grafted, cutting-propagated plants to preserve the true characteristics of the cultivar.

35,00 €

Out of stock

  • Back in stock notification

Get notified when this cultivar becomes available again.

  • Healthy Arrival Guarantee

Acer palmatum ‘Seigen’ — Characteristics & Bonsai Use

‘Seigen’ is one of the rarest and most sought-after Acer palmatum cultivars for bonsai, displaying a spring colour that few other varieties can match. New foliage emerges in a very intense, light red that borders on purple, then gradually turns light green as the season progresses. In autumn, leaves develop strong red to orange tones before dropping. The colour intensity in spring alone makes this cultivar a standout in any collection.

The cultivar has a semi-dwarf, upright growth habit with medium vigour and medium-length internodes. Leaf size is moderate, well suited for bonsai proportions. Bark is smooth throughout development, showing light green with distinctive red and pinkish tones — an unusual trait that adds visual interest even during the leafless season. In open ground, ‘Seigen’ reaches just 1 to 2 metres, keeping proportions naturally compact.

For bonsai purposes, the combination of moderate growth, manageable internodes, and extraordinary spring colour makes ‘Seigen’ particularly well suited for shohin and display-oriented compositions where colour is the primary design feature.
Cultivation note: ‘Seigen’ develops its most intense spring purple-red with good morning light exposure. The bark’s pinkish tones are more pronounced on sun-exposed branches — position the tree to take advantage of this. Protect from strong afternoon sun in summer to avoid leaf scorch on the delicate spring foliage. This cultivar pairs exceptionally well with Beni Chidori and Orihime in a display collection, offering a distinctly different colour register.
  • One of the rarest Acer palmatum cultivars, with a very intense light red to almost purple spring flush that few other varieties can match.
  • Semi-dwarf upright habit with medium internodes, ideal for shohin and display-oriented bonsai.
  • Delivered at a minimum height of approx. 15 cm measured from soil line to apex.
Acer palmatum ‘Seigen’ Japanese Maple green-yellow leaves in soft sunlight

Acer palmatum ‘Seigen’

Plant origin: Japan

Sunlight

Full morning sun with light afternoon shade to protect foliage during peak heat.

Watering

Keep soil evenly moist but well-drained.

Fertilization

Regular feeding during spring and early summer to support balanced growth and colour.

Repotting

Every 2–3 years in early spring, before bud break.

Soil preference

Slightly acidic to neutral.

Pruning & Wiring

Prune after shoot hardening to control internodes and maintain structure.

Read full care guide

Why buy from Treevaset?

Grown specifically for bonsai

Our trees are cultivated from seed or cuttings with bonsai development in mind from the very beginning, not adapted later from ornamental nursery stock.

Non-grafted, true-to-type plants

We only offer non-grafted cultivars to ensure consistent leaf size, internode length, and long-term behaviour true to each variety.

European distribution, limited batches

Selected Acer palmatum cultivars are made available in small, controlled batches, suitable for individual growers as well as clubs and collections.

Support from experienced growers

We provide real, practical advice before and after purchase, based on hands-on experience.

Compare acer palmatum cultivars for bonsai

Cultivar Leaf size Internodes Growth habit Spring Colour Bark Adult Size Best For

Orihime

Very small

Short

Dwarf, compact

Light green, bronze margins

Smooth

1–2m

Shohin, mame

Kotohime

Small

Very short

Dwarf, compact

Green, pink-red margins

Smooth

1–2m

Shohin, mame, forest

Sei Hime

Small

Short

Dwarf, compact

Yellow-green

Smooth

1–2m

Shohin, literati

Seigen

Medium

Medium

Semi-dwarf, upright

Red-purple

Smooth

1–2m

Shohin, display

Beni Chidori

Medium

Medium

Semi-dwarf, upright

Pink to orange

Smooth

2–4m

Training, medium bonsai

Beni Tsukasa

Medium

Medium

Semi-dwarf, upright

Light red, pink tones

Smooth

2–4m

Training, medium bonsai

Katsura

Medium

Medium

Upright

Orange to yellow

Smooth

1–2m

Shohin, medium bonsai

Ukon

Medium

Medium

Upright, fast

Emerald green, yellow accents

Smooth

2–4m

Trunk building, informal upright

Deshojo

Large

Long

Upright, vigorous

Deep red

Smooth

2–4m

Refinement, display

Allen’s Gold

Large

Long

Upright, vigorous

Golden-chartreuse, pink margins

Rough

3–5m

Trunk building, informal upright

Arakawa

Large

Long

Upright, vigorous

Light green, red margins

Rough (corky)

3–5m

Trunk building, informal upright

Feedback from growers

AmericoItalian ★★★★★ Translated from Italian

This bonsai had quite a story. It arrived in poor condition, not due to the seller but because the courier took longer than expected. Treevaset was extremely helpful and immediately available to resolve the situation. Highly recommended. I’ve purchased from them multiple times and I will definitely do so again.

Young Pre-Bonsai

PatfowGerman ★★★★★
Translated from German

Friendly communication and fast delivery. At first, it wasn’t clear to me that the seller ships from Italy, which made me hesitant when ordering plants. However, the plants arrived in excellent condition thanks to very careful packaging.

Young Pre-Bonsai

OtreblaidurItalian ★★★★★
Translated from Italian

The courier was delayed, but the plant arrived healthy thanks to excellent packaging. A very promising larch with good movement and already well-developed foliage. It has a subtle literati-style character that can be further enhanced. It deserves a proper, well-chosen pot. Very satisfied.

Young Pre-Bonsai

JesusSpanish ★★★★★
Original review

Trustworthy and honest seller. Well wrapped. Well received item. Recommended 100%. Ringraziare tanti.

Bonsai

TerabosaGerman (Austria) ★★★★★
Translated from German

Very good quality, securely packaged and fast delivery.

Young Pre-Bonsai

JkiodFrench ★★★★★
Translated from French

Arrived in excellent condition, exactly as shown in the photos. Fast delivery. Impeccable.

Bonsai

 

Frequently Asked Questions (FAQs)

Is Acer palmatum Seigen good for bonsai?
Seigen is excellent for bonsai. Its semi-dwarf habit, medium internodes and one of the most intense red-purple spring flushes among all Japanese maples make it a standout cultivar. In my experience, the balanced growth profile sits well between the compact dwarfs and the vigorous growers — manageable but with enough energy to build structure. It is particularly strong for shohin and display-quality bonsai.
These three cultivars share a semi-dwarf to dwarf profile but differ significantly in colour, vigour and development pace. Seigen has the most intense spring colour (red-purple) and is the rarest. Beni Chidori offers pink-to-orange spring tones with more vigour. Ori Hime is the smallest and slowest with miniaturised leaves. We have written a detailed comparison: Seigen vs Beni Chidori vs Orihime for bonsai.
Seigen is difficult to propagate and there has been significant confusion in the nursery trade about cultivar authenticity — some plants sold as Seigen are actually seedlings or different cultivars. Our Seigen are cutting-propagated from verified mother plants to preserve the true characteristics: intense red-purple spring flush, semi-dwarf habit and distinctive pink-red bark tones on younger branches.
The red-purple spring flush typically peaks in the first 2–3 weeks after bud break, depending on light exposure and temperature. Good morning light intensifies the colour. As the season progresses, leaves transition to light green for summer, then develop red to orange autumn tones. The colour cycle repeats each year with increasing intensity as the tree matures.
No. Seigen is a temperate outdoor species that needs cold winter dormancy (below 10°C for at least 6 weeks) to maintain health and vigour. Without it, spring colour weakens and growth becomes irregular. Keep outdoors year-round with frost protection below -10°C.

Every order is covered by our Healthy Arrival Guarantee. If your tree arrives damaged or in poor condition due to shipping, we replace it or issue a full refund — no questions asked. All trees are carefully packed with protective materials designed for live plant transport across Europe.

Yes. Contact us via email or WhatsApp and we will send you current photos of available trees. Each plant is unique, and we are happy to help you choose the one that best matches your development goals and experience level.

Explore more specimens in our Young Pre-Bonsai collection.