Eustoma grandiflorum
blue field daisy
A single-stemmed or branching annual or biennial to 70cm tall, with slightly fleshy, glaucous, grey-green leaves. In summer, broadly bell-shaped, satin-textured, pale purple flowers, to 5cm across, are produced on long stalks, either singly or in clusters, from the upper leaf axils. In frost-prone areas grow as flowering container plant in a temperate greenhouse. An excellent cut flower
Synonyms
Lisianthius russelianusEustoma russellianum
Size
Ultimate height
0.5–1 metresTime to ultimate height
1–2 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Purple | Green Grey Silver | ||
| Autumn | Green Grey Silver | |||
| Winter | Green Grey Silver |
Position
- Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H1CBotanical details
- Family
- Gentianaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Columnar upright
- Name status
Unresolved
- Plant range
- USA (Nebraska, Colorado, Kansas, Texas)
How to grow
Cultivation
Under glass, grow in peat-free, loam-based potting compost in full light, with bright filtered light when in bloom. Ventilate well. When in growth, water freely and apply a balanced liquid fertiliser every 2-3 weeks; water sparingly in winter. Support stems
Propagation
Propagate by sowing seed at 13-16°C in autumn or late winter
Suggested planting locations and garden types
- Patio and container plants
- Conservatory and greenhouse
- Cut flowers
Pruning
No pruning required
Pests
Generally pest-free
Diseases
May be susceptible to grey moulds
Get involved
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