Black Eyed Susan Growing Guide
Growing Black Eyed Susan is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Flower
Sun Exposure
Full Sun, Partial Sun
Frost Tolerance
Frost Hardy
Growing Zones
Zones 3, 4, 5, 6, 7, 8, 9
Plant Family
Asteraceae
Growing Season
Warm Season
Plant Lifecycle
Perennial
Also grows well as
When To Start
First Chance to Plant
30 Days Before Last Frost
Last Chance to Plant
60 Days Before First Frost
When should you plant Black Eyed Susan?
Your planting dates depend on where you live. Sign up to unlock dates personalized to your location.
Your Black Eyed Susan Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Black Eyed Susan's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
0.5 cm
Seeding Depth
30 cm
Plant Spacing
45 cm
Row Spacing
4
Plants / Sq Ft
Vertical Growing
Yes – Trellis.
Method: Trellis.
Succession Planting
Yes.
Step 2
Planting & Sprouting
Expect sprouts in 10–14 days
Growing Tips
- 1Plant Black Eyed Susans in a spot that gets full sun for at least 6 hours a day to ensure vibrant blooms.
- 2Water them regularly, especially during dry spells, but make sure the soil drains well to prevent root rot.
- 3Space the plants about 12 to 18 inches apart to allow for good air circulation, which helps prevent diseases.
- 4Keep an eye out for pests like aphids and use insecticidal soap if needed.
Seedling Phase
Step 3
Growth & Maturity
~90
Days to Maturity
75 cm
Mature Height
61 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
45 days
When to Pick
Cut flowers when fully open
How to Harvest
- 1Harvest Black Eyed Susan flowers when they are fully open and vibrant in color.
- 2Use sharp scissors or pruning shears to cut the stems just above a leaf node or set of leaves to encourage new growth.
- 3Avoid pulling the stems to prevent damaging the plant's roots.
Step 5
Saving Seeds
How to Save Seeds
Saving seeds from your Black Eyed Susan plant is easy and rewarding, even for new growers! Once the flowers have faded and the seed heads turn brown and dry on the plant, simply snip them off and gently break them open to collect the tiny seeds inside. Let the seeds air dry for a few days, then store them in a labeled envelope or paper bag in a cool, dry place until you’re ready to plant next season. With just a little effort, you’ll have your own homegrown seeds to share or sow, and you’ll be amazed at how simple and fun it is to keep your garden growing year after year!
Seed Production
Feeling inspired?
Grow Black Eyed Susan from seed.
The wildflower that comes back every year on its own. Buy a pack and get started.
$2.25
CAD
In Stock
