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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names spotted begonia trout begonia
Synonyms Begonia argyrostigma
Family Begoniaceae
Genus Begonia can be annuals, evergreen or deciduous perennials or shrubs, with fibrous, tuberous or rhizomatous roots and usually asymmetrical leaves, often strikingly patterned, and small or large flowers, both male and female in the same cluster
Horticultural Group Cane-stem begonias are erect, evergreen perennials with fibrous roots and cane-like stems with asymmetrical, strongly toothed leaves, often strikingly marked, and showy flower clusters in spring or summer
Details B. maculata is a fibrous-rooted species with erect stems to 1m. Foliage is green with silvery-white spots above, red below and has a heart-shaped base, a wavy texture and an undulate margin. Flowers are pale pink or white and are held in pendulous groups in summer; female flowers are more numerous than male ones and tepal sizes are unequal
Plant range Brazil
Foliage Evergreen
Habit Bushy
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1B
Partial Shade
Aspect South-facing or East-facing
Exposure Sheltered
Clay
Loam
Sand
MoistureMoist but well-drained, Well-drained
SoilClay, Loam, Sand
pHAcid, Neutral
Ultimate height 0.5-1 metres
Ultimate spread 0.1-0.5 metres
Time to ultimate height 2-5 years
Cultivation Under glass grow in light, well-drained loam-based or loam-less potting compost in filtered light with shade from hot sun at an optimum of 19°C. Will not tolerate continuous direct sunlight or waterlogging. Water moderately when in growth and apply a balanced liquid fertiliser at alternative waterings. See Begonias: outdoors for further advice.
Propagation Propagate by stem cuttings
Suggested planting locations and garden types Patio & Container Plants
Pruning Cut back over long canes to 2 or 3 buds in late spring
Pests May be attacked by caterpillars, mealybugs, thrips and vine weevils
Diseases May be subject to powdery mildews, stem rot and rhizome rot
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
spotted begonia
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