About
Amaranthus hypochondriacus 'Green Thumb' is a robust annual that reaches heights of up to 60 cm. It features elongated, purple foliage and produces upright, plume-like inflorescences that are bright yellow-green from summer through early autumn. This variety is suitable for both cutting and drying.
About the genus
Amaranthus comprises annuals that can grow upright or spread out, as well as short-lived perennials. The plants feature simple leaves and produce small flowers organized in dense, catkin-like clusters that may be erect or drooping, typically blooming during the summer and autumn seasons.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H2
Plant details
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1 year
- Suggested uses
- Cottage and informal garden
Care notes
- Cultivation
- Under glass, grow in peat-free, loam-based potting compost, in full light
- Pruning
- No pruning required
- Propagation
- Sow seed at 20°C (68°F) in mid spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- May be susceptible to a virus