Glaucium corniculatum
Horned poppy, Sea poppy, Red horned poppy
Also known as Glaucium phoenicium
- Height × spread
- 0.45m × 0.3m
- Position
- Full sun
- Hardiness
- Very cold to -20C (RHS H6)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
Usually a biennial, this poppy will probably reseed itself anyway. It's a striking plant with jagged blue-grey leaves that form restless looking little clumps. The flowers are the colour of burnt-orange during summer and autumn. After this it produces long seed pods which are shaped rather like a horn, hence its common name.
- Flower colour
- Orange
- Foliage colour
- Blue, Grey
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 0.45m
- Spread
- 0.3m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Sun or shade
- Likes full sun
- Soil type
- Loam (normal), Poor soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Very cold to -20C (RHS H6)
- Borders & containers
- Borders
- Hazards
- No
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.