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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 golden barrel cactus mother-in-law's seat
golden ball cactus
Family Cactaceae
Genus Echinocactus are slow-growing cacti with barrel-shaped or columnar, deeply ribbed stems bearing strong spines, and bell-shaped flowers in summer
Details E. grusonii forms a barrel-shaped stem to 50cm in height, with deep ribs bearing yellowish spines and, on mature plants, yellow flowers to 6cm in length
Plant range Mexico
Foliage Evergreen
Habit Columnar/Upright
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1C
Full Sun
Aspect West-facing or South-facing
Exposure Sheltered
Loam
Sand
MoistureWell-drained
SoilLoam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 0.1-0.5 metres
Ultimate spread 0.5-1 metres
Time to ultimate height 10-20 years
Cultivation Grow under glass in a loam-based potting compost with added extra grit. Water moderately when in growth, not at all when dormant. Apply a balanced liquid fertiliser 2 or 3 times in the growing season. Can mark on the surface if the environment is too humid
Propagation Propagate by seed
Suggested planting locations and garden types Drought Resistant
Pruning No pruning required
Pests mealybugs can be a problem
Diseases Generally disease free
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golden barrel cactus
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