How To Grow Petunia Seeds

HISTORY

Petunias, as we know them today, are descended from two different varieties native to South America. These small-flowered varieties were brought to Europe in the 1800s, where cross-breeding and experimenting began. The two were crossed in a natural manner and have been stabilized, making these antique garden petunias a true heirloom, despite the 'x hybrida' in the Latin name.

USES

• Ornamental
• Beds, borders, butterfly garden, containers, cottage garden, hanging baskets, window boxes
• Visited by butterflies, hawkmoths, and hummingbirds

• Seeds germinate in 7-14 days.
• Start seeds 10-12 weeks before last frost and transplant out after frost.
• Surface sow seeds, as light aids germination.
• Germination temperature is 70-85 F.

• Requires full sun and rich, well-drained soil.
• Plants are very heat loving and quite drought tolerant, although consistent moisture (water once a week) is preferable.
• Space plants 12 inches apart.
• Deadhead spent flowers to encourage continued blooming.

PESTS/SPECIAL CONSIDERATIONS

• Aphids can be a problem; keep this pest at bay with organic insecticidal soap.
• Mites can also be kept under control with neem oil.
• Overwatering or poorly drained soil can cause rot.

• Petunias will readily self seed in mild winter climates.
• To save seed, hand pick the brown seed pods.
• Take care to collect the seed pods before they burst and spread seed across the garden.
• Save seed over winter in a cool, dark, dry place.