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The familiar and edible nasturtium, the unripe seeds of which can be steeped in pickled vinegar and used as a substitute for capers, is developed from the annual climber T. majus.
Genus of 80-90 species of hairless, climbing, trailing or bushy annuals and herbaceous perennials, many with tuberous roots, found mainly in cool, mountainous areas in Central and South America.
T. speciosum has adapted so well to the cool. moist climate of Scotland that it bears the name of the country.
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
Orange - orange and yellow flowers
Height - 2-3m (6½-10ft)
Spread - 50-90cm (20-36in)
Climber - Some of these climbing plants will need trellis or wire supports if grown on walls or fences. Other grow aerial roots and are self-clinging
Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch. - perennial. 3- to 6-lobed, greyish-green leaves 5cm (2in) long.
Half hardy - unheated greenhouse / mild winter - Hardy in coastal and relatively mild parts of the UK except in severe winters and a risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good micro-climate. Likely to be damaged or killed in cold winters. Plant can withstand temperatures down to -5°C (23°F)
Partial shade - roots and stems need to be in cool shade. Plant will climb into sunlight.
Additional Features - Pests & Diseases - - caterpillars, flea beetles, black fly, slugs.
Place of origin - Colombia, Ecuador, Peru, Bolivia.
Flower Shape - Cup-shaped - - long-spurred flowers 3-4cm (1¼-1½in) long.
Hardiness - Frost hardy (down to -5) -
Soil Conditions - Fertile moist well-drained soil - - humus- rich,
Neutral to acid soil
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- Summer propagation - Video Tip ondemand_video
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