Overview
Iris 'Jubilee Gem' (TB) is a upright herbaceous perennial in the genus Iris, part of the Iridaceae family, with blue-green foliage. Iris 'Jubilee Gem' (TB) grows best in full sun, and tolerates sandy soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include border planting and architectural plant.
About
Iris 'Jubilee Gem' is a herbaceous perennial cultivar within the Iris genus, known for its upright habit and blue-green foliage. Like other irises, it produces flowers with three broad fall petals and three smaller upright standard petals, typically blooming in spring. This cultivar thrives in full sun on south-facing, sheltered aspects, favouring well-drained, sandy, neutral soil that remains dry. It is hardy to UK zone H7 and is suitable for border planting or as an architectural plant. Cultivation involves planting rhizomes shallowly with the top exposed and watering during dry spells while avoiding waterlogging.
About the genus
Iris takes its name from the Greek goddess of the rainbow, and for once the naming feels entirely earned. I can't think of another genus that covers so much ground — inky purples, burnt apricots, clean whites, blues that seem lit from inside — or so many situations. There are bearded irises that want their rhizomes baked in full sun, Siberian types happy in ordinary border soil, and species that will sit contentedly at the edge of a pond. What they share is the flower: three petals standing up, three falling away, built with a kind of architectural confidence most plants never attempt. Even out of bloom the foliage earns its place — those upright fans of blue-green leaves hold a border together for months. I grow them for the fortnight in May and June when nothing else in the garden can compete, and I've made my peace with that. Some plants are for the long haul. An iris is an event.
Written by Henry
Growing conditions
Best soil and position for Iris
- Sunlight
- Full sun
- Soil type
- Sandy
- Soil pH
- Neutral
- Soil moisture
- Dry
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H7
Plant details
Iris 'Jubilee Gem' (TB) size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Upright
- Foliage
- Blue-green
- Suggested uses
- Border planting, Architectural plant
Care notes
Pruning and caring for Iris 'Jubilee Gem' (TB)
- Propagation
- Division, Seed
- Pest resistance
- Resistant
- Disease resistance
- Resistant
Frequently asked questions
Where is the best place to plant Iris 'Jubilee Gem' (TB)?
Iris 'Jubilee Gem' (TB) prefers full sun. It suits sheltered positions.
What soil does Iris 'Jubilee Gem' (TB) need?
Iris 'Jubilee Gem' (TB) grows best in sandy soil. It prefers neutral soil. Aim for soil that stays dry.
Is Iris 'Jubilee Gem' (TB) hardy in the UK?
Iris 'Jubilee Gem' (TB) has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Iris 'Jubilee Gem' (TB)?
Division, Seed.
More in the Iris genus
- Iris 'Antigone' (TB)
- Iris 'Dauntless' (TB)
- Iris 'Dipped in Dots' (TB)
- Iris 'Ablaze' (MDB)
- Iris 'After the Storm' (TB)
- Iris 'Aldo Ratti' (TB)
- Iris 'Alene's New Love' (SDB)iris 'Alene's New Love'
- Iris 'Alpine Lake' (MDB)