Overview
Geum 'Massimo Giallo' is a cushion or mound forming herbaceous perennial in the genus Geum, part of the Rosaceae family, with semi-evergreen foliage. Geum 'Massimo Giallo' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include gravel, rock, beds and borders, cottage/informal and low maintenance.
About
A herbaceous perennial that forms a low cushion or mound, Geum 'Massimo Giallo' carries semi-evergreen basal foliage and produces flowers in June to August. It suits full sun or partial shade and tolerates exposed as well as sheltered sites. Prefers chalky, loamy or sandy soils that are moist but well-drained. Rated H7, it is fully hardy in UK gardens.
About the genus
Geum (L.), commonly called avens, is a flowering plant genus of about 60 accepted species and hybrids, within the Rosaceae family in the order of Rosales, in the major group angiosperms. The species of the genus are widely distributed across Europe, Asia, North and South America, Africa, and New Zealand. They are closely related to Potentilla and Fragaria.
Wikipedia contributors, "Geum", CC BY-SA 4.0 — Geum
In the garden
Geum 'Massimo Giallo' is a cultivated member of the Geum genus in the rose family (Rosaceae), sitting as a compact, cushion- or mound-forming perennial with semi-evergreen leaves. Flowering occurs from June to August, when the plant produces its seasonally conspicuous blooms on wiry stems above the basal rosette. Plant where it will receive full sun or dappled light in partial shade; east, west or south-facing aspects all suit it. Soils that are chalky, loamy or sandy are appropriate provided they remain moist but well-drained, and the plant tolerates a range of soil pH from acid to alkaline. It will grow in exposed spots as well as sheltered corners and is assessed as H7, meaning fully hardy for UK conditions. Use Geum 'Massimo Giallo' in gravel or rock gardens, tucked into beds and borders, or as part of a cottage or informal planting where a low mound of summer flowers is needed. Its semi-evergreen basal rosette gives structure outside the flowering months and requires only routine attention once established, making it suitable for lower-maintenance areas of the garden.
Growing conditions
Best soil and position for Geum
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalky, Loamy, Sandy
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East, West, South
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Geum 'Massimo Giallo' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Cushion or Mound Forming
- Foliage
- Semi-evergreen
- Suggested uses
- Gravel, Rock, Beds and borders, Cottage/Informal, Low Maintenance
Care notes
Pruning and caring for Geum 'Massimo Giallo'
- Propagation
- Division
- Pest resistance
- Glasshouse red spider mite, Aphids, Sawflies
- Disease resistance
- Powdery mildews
Frequently asked questions
Where is the best place to plant Geum 'Massimo Giallo'?
Geum 'Massimo Giallo' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Geum 'Massimo Giallo' need?
Geum 'Massimo Giallo' is adaptable and grows happily in most soil types, including chalky, loamy and sandy. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.
Is Geum 'Massimo Giallo' hardy in the UK?
Geum 'Massimo Giallo' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Geum 'Massimo Giallo'?
Division.
More in the Geum genus
- Geum 'Bell Bank'Avens

- Geum 'Borisii' of gardensavens 'Borisii'

- Geum rivale 'Album'Water Avens

- Geum 'Cosmopolitan'Avens
- Geum 'Pink Fluffy' (Censation Series)Avens
- Geum 'Tutti Frutti'Avens
- Geum CosmpolitanAvens