Blue Beauty: Grow Delphinium in Your Flower Garden 

Delphiniums enjoy full sun but may tolerate moderate shade. They prefer well-drained soil, therefore avoid water-pooling places.  

Choose the Right Location 

Add compost or well-rotted manure for fertility and drainage. Delphiniums like pH 6.0–7.0 soil.  

Soil Preparation 

Delphiniums should be planted in spring or fall. Sow seeds indoors 8-10 weeks before the last frost or outside when the threat of frost has passed.  

Planting Time 

Plants grow tall and prickly, so space them 12-18 inches apart for air circulation.  

Spacing 

Water the soil regularly but not wet. Water the plant base to prevent mildew and decay.  

Watering 

To keep delphiniums blooming, feed them a balanced, slow-release fertilizer in early spring and after the first bloom.  

Fertilizing 

Tall delphiniums may need staking to stay upright. Guide their growth early in the season with stakes or supports.  

Staking 

Remove wasted blossoms to promote new growth. To preparation for winter, trim plants to ground level in late fall.  

Pruning 

Check for aphids and slugs. Aphids need insecticidal soap while slugs need bait or hand-picking.  

Pests 

Delphiniums can get powdery mildew and root rot. Avoid overhead irrigation and improve airflow to reduce these difficulties.  

Diseases 

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