When to Plant Zinnia Seeds
Zinnias are best started directly outdoors in locations where spring warms up early. Keep in mind that Zinnias are native to Mexico, where they have become accustomed to long, hot summers. They are classed as tender annuals and can be directly sown into the garden after all danger of frost is over and daytime temps are at least 50F and above. In cooler climates, start seeds indoors 4 to 6 weeks before your area’s average last-frost date. Harden off the plants by vacationing trays outside for a few hours per day before planting them in your garden.
Where to Plant Zinnia Seeds
Choose a spot that has full sun. Zinnias can thrive in a wide array of well-draining soil conditions.
How to Plant Zinnia Seeds
Turn over the soil in the area you want to plant your zinnias and work in 2 or 3 inches of compost or peat moss to help improve soil fertility and drainage. Plant the seeds only about ¼” – ½” deep and you should see seedlings sprout in four to seven days. Once the seedlings reach about 3” tall, thin them to maximize air circulation, and prevent powdery mildew. The dwarf varieties, reaching a height of 1 to 1 ½ feet, should be planted or thinned to about 9” apart, while the taller 3-feet varieties should be spaced about 1 foot apart. If starting your zinnias indoors, fill up your pots with organic potting mix. Saturate the potting mix with water and then place two zinnia seeds into each planting cell or pot. Press into the soil for good seed-to-soil contact and then cover with approximately ½” of the potting mix. Place your zinnias in an area that will receive plenty of warmth (65-70F) and light. Keep your zinnia seeds moistened, checking on them every day or two. Expect to see germination in about 7 to 10 days. Once your seedlings reach about 2 ½ - 3” tall, they are ready to be transplanted outdoors. Zinnias may be transplanted with ease, as it is possible to move the plants when they are in full flower! Although they thrive best in full sun, they will also endure partial shade.
How to Care for Zinnias
Water the area of your zinnia plants carefully, do not get the stems or leaves wet since zinnias are prone to mildew. Keep your zinnia garden lightly moistened, and let the area dry out between watering. The beauty of zinnias is that you can spend your attention elsewhere while they bloom profusely summer to autumn.
Customer Photos

Zinnia Field | Kristin from Virginia

My wildflower | Holly Booker from Tennessee

Garden harvest | Nicole from Idaho

My two row flower “field” and my favorite visitor | Nicole from Idaho

Kristina’s fresh cuts from our Garden of Eden | Ona Stewart from California

My zinnias! | Jodie Prine from Wisconsin

Green With Envy | Grandbleu72evrdream from New York

Flower harvest | Kaitlyn from Massachusetts

Zinnia hedgerow | Casey from New York

Bouquet from my garden | Leigh from Nebraska

Feeling “zen” with my zinnias! | Deanna from Mississippi

Dahlias and zinnias | Lauren from New York

Zen Flowers | Diana Sanders from Texas

First Zinnia | Jamie from Wisconsin

Miss Willmott | Donna from California

A single Queen Lime Zinnia | Johanna Pike from Connecticut

My field of Zinnias and sunflowers. | David Roberson from Indiana

My Zinnia Garden | Tommy Williamson from Tennessee

Our beautiful Zin Master zinnias! | Lynnette from Indiana

Zinnias and wildflower border | Carl from Michigan

My garden of zinnias | Tommy from Tennessee

A little Slice of Heaven on Earth ! | Karen from New York

Bursting with Zinnias! | Tracy from Illinois

Zinnias in Bulk! | Tracy from Illinois

Zinnia Love | Tracy from Illinois

Zinnia… a great flower to both add color to your garden and help out our pollinator friends. | Erin from Minnesota

Tub of zinnias | Janet Starnes from Oklahoma

A Blushing Bouquet! | Ledley from West Virginia

Zinnias | Dan from District Of Columbia

Pollinator on zinnias! | Varenka Rodriguez DiBlasi from New York

My lime queen blush | Thao from California

Touch of sunshine | Julie from South Carolina

My Garden Beds | John Pitts from Georgia

Pierce Farm Zinnia Field | Jennifer from Illinois

My Field Of Zinnias | Ruth Thomas from Alabama

Beautiful red zinnias | Sally from Illinois

Zinnias | Kathryn from North Carolina

Brothers | Elaine from Iowa

Zinnia Patch | Megan from Wisconsin

Hats off to the Senorita zinnia! | Jessica from Illinois

Butterfly on Zinnia | Kathryn from North Carolina

Busy bee | Larochelle from Illinois

Save the bees | Larochelle from Illinois

Zinnia Beauty Queen! | Rebecca from North Carolina

Granddaughter falling in love with flowers | Jen from North Carolina

Zinnias & Squash | Ginger from Utah

Zinnias for the mini meadow! | Melissa from Georgia

Cutting Garden Outside my Bedroom | Lyn from Georgia

Zinnia flowerbeds | Kristina from Alabama

Zinnia and tomato Heaven | Marion from Texas

Dahlias and Zinnias and cousin Lee | Eileen from Louisiana

BUTTERFLY ATTRACTOR! | KYLE from

Butterfly favorite! | Shirley from

This Tiger loves the Giants! | Wendy from Maryland

Eden Bros seeds in stages | Pam from North Carolina

Eden Bros zinnias for Mama! | Pamela from North Carolina

Butterflies and Zinnias | Ann from Kansas

Zinnia | Deanna from Michigan

Zinnia Border | Jackie from Missouri

Cosmos and Zinnias | David Stewart from North Carolina

Flower bouquet | Maci from Kentucky

Butterfly 🦋 on our zinnias | Maci from Kentucky

Beautiful colors! | Vicky from Indiana

Summer Love | Chrmn_l@yahoo.com from Massachusetts

My field of Zinnias for real!! | David J DeLoach from Louisiana

Wildflowers and zinnias | Taylor from Kansas

Front yard Zinnias | JOHN THOMAS from Kentucky

Summer | Matt from District Of Columbia

Zinnia field | Michael James Oliver from Rhode Island

August harvest | Rhiannon M Lawson from Virginia

Zinnias and dahlias | Rhiannon M Lawson from Virginia

Roses Are Fine but a Field of Zinnias is Divine | Tim Reinbott from Missouri

Roses are fine, but a field of zinnias is divine. | Tim from Missouri

The bees love my zinnias. | Kathryn O’Brien from Ohio

Flower Child | Becky from Oregon

Zinnia Fairy | Becky from Oregon

Zinnias & Millet | Sydney from Arkansas

My flower bed | Mary from Nevada

Wheel barrow of my red zinnias | Elise from North Carolina

An unexpected guest | Claire from Indiana

Pollen pitstop | Bailey from Virginia

Happy Pollinators | Jeffrey Parmentier from South Carolina

My zinnia patch | Jodie from Wisconsin

Zinnias | Mark from North Carolina

Zinnia Sunset | Amanda from Kentucky

Example: My Field of Zinnias! | Andrea from Illinois

A country girl’s garden | Judy from South Carolina

Somewhere over the rainbow | Donna from Colorado

Labor of love | Stephanie from Illinois

Memory Garden | Sandy from Texas

Garden of zinnias | Katie from Iowa

Zinnias | MICHAEL MELICIA from Florida

Example: My Field of Zinnias & perennial wildflower mix | Karen from Kansas

My wife bloom garden begin!!! | Martin from

Zinnias in Garden | Ashleigh from North Carolina

Zinnia seeds -California Giants | Cindy from Virginia

Zinnias | Jim from New York

Flowers from Holland | Ken from

Zinnias Meadow | Rooster Hill Flowers (Libbi) from Kentucky

Pathway of Zinnias | Leonard from North Dakota