Water petunias regularly, ensuring the soil stays consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings, especially during hot weather.

Overwatering can lead to root rot, while underwatering causes wilting and reduced flowering.

Pinch back the tips of young petunia stems to encourage bushier growth. Deadhead spent flowers regularly to stimulate more blooms and prevent seed formation.

Trim back overgrown plants by about one-third in mid-season to rejuvenate them.

Petunias are typically propagated from seeds sown indoors 6-8 weeks before the last frost. They can also be propagated from stem cuttings taken in late spring or early summer. Cuttings root readily in moist potting mix.

Repot petunias when they become root-bound, usually in spring. Choose a pot that is only slightly larger than the current one. Ensure the new pot has adequate drainage holes to prevent water accumulation.

Use fresh, well-draining potting mix.