Description

Acorus gramineus ‘Ogon’ is one of the most eye‑catching compact marginals available, known for its bright golden‑yellow, grass‑like foliage that brings instant colour and light to pond edges. Its fine, arching leaves create movement in the breeze, while the plant releases a clean, sweet fragrance when brushed or crushed.

This dwarf, clump‑forming perennial is perfect for small ponds, container water gardens, bog edges, and contemporary planting schemes. It thrives in shallow water or consistently moist soil and remains tidy and compact throughout the season.

Key Features

• Brilliant golden‑yellow foliage for instant colour
• Compact, tidy habit ideal for small ponds
• Aromatic leaves with a fresh, sweet scent
• Excellent for wildlife ponds and natural filtration
• Adds texture, brightness, and movement
• Hardy and reliable in UK conditions

Planting & Positioning

• Planting depth: 0–3 cm above crown
• Position: Full sun to part shade (best colour in sun)
• Ideal for: Small ponds, container ponds, bog gardens, marginal edges
• Growth habit: Compact, clump‑forming perennial
• Flowering period: May–July (small, subtle spadix)

Care & Maintenance

• Very low maintenance
• Trim away old foliage in early spring
• Divide every 2–3 years to maintain shape and colour
• Fully hardy across the UK

Technical Data

• Botanical name: Acorus gramineus ‘Ogon’
• Growth rate: Medium
• Supplied as: Bare‑root or potted (depending on stock)
• Wildlife value: Good (shelter, structure, filtration)
• Native status: Non‑native ornamental species

Companion Plant Suggestions 

• Iris ensata ‘Gracieuse’ – soft lilac flowers contrast beautifully with golden foliage
• Lysimachia nummularia ‘Aurea’ – matching gold tones for a cohesive colour scheme
• Pontederia cordata ‘Alba’ – white flowers balance the brightness
• Juncus effusus ‘Spiralis’ – sculptural twisted stems add contrast and texture

FAQ 

Is Acorus gramineus ‘Ogon’ suitable for small ponds

Yes — its compact, tidy habit makes it perfect for small ponds and container water gardens.

Does the golden colour stay bright

Yes — the foliage remains vivid throughout the season, especially in full sun.

Is it fully hardy

Yes — it is fully hardy across the UK and performs reliably year after year.

Can it grow in normal garden soil

Yes — as long as the soil stays consistently moist, it thrives in bog gardens and wet borders.