Growing Petunias

When it comes to sun and soil, petunias can't get enough of the good stuff.
Petunia_baby-duck_s4x3

Petunia_baby-duck_s4x3

'Baby Duck' petunia stands up to heat, humidity and rain. Spent blooms don't need to be removed.

'Baby Duck' petunia stands up to heat, humidity and rain. Spent blooms don't need to be removed.

Related To:

Q. I thought petunias were easy to grow, but I always have such a time with them! Their foliage is stunted, and they scarcely flower. They're getting plenty of sun. What could be the problem?

A. Petunias are pretty particular: they need full sun, good soil and regular watering and feeding. They also don't do well with too much water, so an extended rainy period will tend to make them stunted and/or prone to disease.

Here's a checklist:

1. Give them good, well-draining soil; amend the soil where you plant them. If you're growing petunias in containers, make sure to use fresh, high-quality potting soil. Using leftover potting soil from the year before could be introducing them to disease.

2. When putting in transplants, rough up the outer edges of the root ball — or split it apart — in order to encourage the roots to expand into the new larger container.

3. Pinch back the stems to encourage branching.

4. Feed once every two weeks with a balanced fertilizer.

5. If you live in the South, use Wave petunias or other varieties that have been bred to handle humidity and rain.

6. Petunias need full sun — five or six hours are okay, but 8 or 9 are even better.

Good luck!

Keep Reading

Next Up

Petunia: Our Favorite Flowers

Add color and versatility to your summer garden container.

Growing Cosmos from Seed

Cosmos are colorful flowers to enjoy for just a season, but a worthy visitor to any garden. Get tips for growing this popular annual from seed.

How To Choose, Plant And Grow Annuals

Add a burst of seasonal color to your garden with easy-to-grow annuals.

Design With Annuals and Biennials

Get ideas for using annuals and biennials in your garden.

Lantana Care: Growing and Pruning Lantana

Add easy-care beauty to your yard by growing lantana—you won’t be disappointed.

Planting Annuals: When and How To Plant Annual Flowers

Learn the ins and outs of planting annuals, including when to plant annuals and techniques you can use to boost success.

Zinnia Flowers

Celebrate summer by planting a mix of zinnia flowers you can pick and plunk into vases.

Q&A: Japanese Stiltgrass

Learn about this invasive exotic weed that thrives in a variety of soil and light conditions.

Growing Pussy Willows

Learn how to grow and prune these unique shrubs and their fuzzy catkins that signal spring.

Growing Stewartia

Enjoy the blooms of this “false camellia” all summer long.

1,000+ Photos

Browse beautiful photos of our favorite outdoor spaces: decks, patios, porches and more.

On TV

You Live In What?

6:30am | 5:30c

Big Easy Reno

7:30am | 6:30c

Flip or Flop

8:30am | 7:30c

Flip or Flop

9:30am | 8:30c

Flip or Flop

10am | 9c

Flip or Flop

10:30am | 9:30c

Flip or Flop

11am | 10c

Small Town, Big Flip

11:30am | 10:30c

Fixer Upper

12pm | 11c

Fixer Upper

1pm | 12c

Fixer Upper

2pm | 1c

Fixer Upper

3pm | 2c

Fixer Upper

4pm | 3c

Fixer Upper

5pm | 4c

Fixer Upper

6pm | 5c

Fixer Upper

7pm | 6c
On Tonight
On Tonight

Fixer Upper

8pm | 7c

Fixer Upper

9pm | 8c

Good Bones

10pm | 9c

House Hunters

11pm | 10c

House Hunters

11:30pm | 10:30c

Fixer Upper

12am | 11c

Good Bones

1am | 12c

House Hunters

2:30am | 1:30c

Fixer Upper

3am | 2c

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.