Sea Holly. A perennial with spiny, dark green, veined basal leaves. Branched stems of cone-shaped, bright steel-blue flowers surrounded by spiny steel-blue bracts. Max Height 90cm. Max Spread 45cm. Flowers July to September. Full sun. Hardy. Water thoroughly before planting.
Eryngium x oliverianum
A perennial with spiny, dark green, veined basal leaves. Branched stems of cone-shaped, bright steel-blue flowers surrounded by spiny steel-blue bracts.
	
	
	Category: Perennials
	
	
							
											
				Additional information
				
					
						
							
			
						
					
				
			
								
								| Generic | Eryngium  | 
		
|---|---|
| Species | x oliverianum  | 
		
| Varietry | |
| Common Name | Sea Holly  | 
		
| Flower Colour | blue  | 
		
| Soil | Fertile  | 
		
| Aspect | Full sun  | 
		
| Foliage | Herbaceous  | 
		
| Height | 90cm  | 
		
| Family | Apiaceae  | 
		
| Spread | 45cm  | 
		
| Growth Speed | |
| Growth Habit | Clump-forming  | 
		
| Fragrance | FALSE  | 
		
| Foliage Colour | green, silver  | 
		
| Flowers From | July, September  | 
		
| Colour Fruit | |
| Fruits When | |
| Moisture | Dry  | 
		
| Protection | Protect from winter wet  | 
		
| Hardiness | Hardy  | 
		
| Planting | Water thoroughly before planting  | 
		
| Care | Keep moist in first year  | 
		
| Border | Border, Dried flowers  | 
		
| Toxicity | |
| Pruning | |
| Pruning Time | |
| Pests and diseases | |
| Maintenance | |
| Propagation | 
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