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- SKU:
- COCGB-2L
Only 3 left
Details
A vigorous, large‑flowered Cornflower producing oversized, vivid blue blooms on tall, branching stems. ‘Goliath Blue’ is excellent for cutting, wildlife planting, and cottage‑garden borders, attracting bees and butterflies throughout summer. Hardy, reliable, and full of classic meadow charm.
Click on the 'Growing Information' tab for more details about this plant.
Growing Information
| Common Name | Cornflower |
|---|---|
| Genus | Centaurea |
| Exposure | Exposed, Sheltered |
| Soil Type | Loam, Sand |
| Soil pH | Acidic, Alkaline, Neutral |
| Soil Moisture | Well Drained |
| Height (Max.) | 50-100cm |
| Spread (Max.) | 10-50cm |
| Growth Habit | Clump-forming |
| Flower Colour | Blue |
| Foliage Colour | Green |
| Planting | Thrives in well-drained soils of any type in full sun. Requires minimal watering and regular deadheading to keep the flowers abundant all summer |
Reviews
Plant Care
What are you buying?
4L, 2L & 1L refer to pot volume in litres. 9cm, 7cm & 5cm refer to pot diameter. These are common terms used in plant retail to indicate the size of a plant root system. Leaf & stem growth on plants varies widely by variety and time of year. Usually, 1L/2L/4L plants can be anywhere between 20-60cm tall & 5/7/9cm plants will be around 10-30cm tall. However, this may be less if the plant is naturally low growing or if it is a herbaceous plant in winter.
Plug plants are small plants grown from seeds or cuttings in cell trays. Their root systems start from about 1cm and the largest plug plants, described as extra-large or jumbo, are usually around 4cm. Plug plants can be great value to buy but they will need some extra care to get them started. We recommend planting each plug plant into its own 7 or 9cm pot (about the size of a standard mug), NOT directly into open ground or large pots. Ensure the pot has plenty of holes underneath and preferably over two tiers for even better drainage.