Overview
Roldana petasitis is a bushy annual biennial in the genus Roldana, part of the Asteraceae family, with deciduous foliage. It typically grows around 2.5-4 metres tall and 2.5-4 metres wide, reaching full size in around 1-2 years. Roldana petasitis grows best in full sun, and tolerates most soils and alkaline and neutral pH. Its UK hardiness is rated H4. Suggested uses include city and courtyard gardens and cottage and informal garden. It is native to E Mexico.
About
Roldana petasitis is a robust evergreen perennial that can reach heights of approximately 3 meters. It features large, broad leaves with a tropical appearance, characterized by dark green, velvety texture and prominent veining, often exhibiting a reddish hue. From January to April, it produces clusters of yellow flowers that resemble daisies.
Growing conditions
Best soil and position for Roldana
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Roldana petasitis size, habit and characteristics
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 2.5-4 metres
- Spread
- 2.5-4 metres
- Time to full height
- 1-2 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden
- Native to
- E Mexico
Care notes
Pruning and caring for Roldana petasitis
- Cultivation
- Grow in a sunny, sheltered bed where the soil is well-drained and neutral to slightly alkaline
- Pruning
- Cut back after flowering
- Propagation
- Propagate by seed sown in gentle heat in early spring. Protect from cold winter temperatures
- Pest resistance
- May be susceptible to aphids, flea beetles and cabbage root fly
- Disease resistance
- May be susceptible to club root, downy mildews, root rot and a virus
Frequently asked questions
How do I grow Roldana petasitis?
Grow in a sunny, sheltered bed where the soil is well-drained and neutral to slightly alkaline.
Where is the best place to plant Roldana petasitis?
Roldana petasitis prefers full sun. It suits sheltered positions.
What soil does Roldana petasitis need?
Roldana petasitis is adaptable and grows happily in most soil types, including chalk, loam and sand. It prefers alkaline and neutral soil. Aim for soil that stays moist but well-drained.
How do I prune Roldana petasitis?
Cut back after flowering.
How big does Roldana petasitis grow?
Roldana petasitis reaches a height of 2.5-4 metres and a spread of 2.5-4 metres. It takes around 1-2 years to reach full size.
Is Roldana petasitis hardy in the UK?
Roldana petasitis has a UK hardiness rating of H4.
How do I propagate Roldana petasitis?
Propagate by seed sown in gentle heat in early spring. Protect from cold winter temperatures.