Also known as Arundo · Arundo Grass · Bamboo Reed
Giant reed (Arundo donax) is a tall, grass-like perennial plant known for its rapid growth and use in erosion control and ornamental displays.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Requires at least six hours of direct sunlight per day for optimal growth and flowering.
Moderate to High
75% intensity
Prefers consistently moist soil, especially when young or during dry periods. Avoid waterlogged conditions.
Clay, Loam, Sand, Acid, Neutral, Alkaline
50% intensity
Moderate
50% intensity
Prefers warm temperatures during the growing season. Protect from prolonged freezing temperatures.
Aquatic
50% intensity
Low to Moderate
25% intensity
Benefits from a balanced fertilizer in spring. Avoid over-fertilizing, which can lead to weak growth.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Generally considered non-toxic, though some sources mention potential for mild skin irritation or gastrointestinal upset if ingested in large quantities.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Giant reed thrives in consistently moist soil. Water regularly, especially during dry spells, to maintain soil hydration. Avoid waterlogged conditions, which can lead to root rot.
Once established, it can tolerate some drought but performs best with adequate moisture.
Cut back all foliage to the ground in late winter or early spring before new growth begins. This removes dead or damaged material and tidies the plant.
Any dead stems or leaves can be removed throughout the growing season as needed.
Giant reed is easily propagated by division or stem cuttings. Divide established clumps in early spring. Stem cuttings can be taken in summer and rooted in moist soil or water. It can also spread readily by rhizomes.
Repotting is generally not necessary for giant reed as it is typically grown as a large landscape plant. If grown in containers, repot every 2-3 years into a larger pot with fresh potting mix in early spring.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Giant Reed (Arundo donax)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Arundo |
| Species | Arundo donax |
Similar in genus Arundo
Answers based on plant encyclopedia data
