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Rudbeckia - Sweet Coneflower
Seed Packet

Rudbeckia - Sweet Coneflower

Rudbeckia subtomentosa
A beautiful native plant that helps insects and birds, sweet coneflower is strong and enduring as well as non-running. Masses of bright yellow 3" daisy flowers bloom all summer into fall. Lovely with bee balms, swamp milkweed, and asters in borders and meadow plantings.
SKU #S1963
$3.50
Growing Companions
Aster - Smooth
Aster - Smooth
Milkweed - Swamp
Milkweed - Swamp
Bee Balm 'Claire Grace' - S1
Bee Balm 'Claire Grace'
Details
Approximate Seeds Per Packet
464
Lifecycle
Perennial
Perennial Hardiness Zone
4,
5,
6,
7,
8
Mature Size
3-6' h x 1-2' w
Sun
Full sun to partial shade
Soil
Regular, moist, well-drained
Season
Summer to fall
Color
Bright yellow
Features
Great for containers
Great Cut Flower
Heat or Drought Tolerant
Attracts Butterflies
Attracts Bees
SOWING INSTRUCTIONS
Depth:
Surface sow and lightly press in.
Sprout Time:
10-30 days from end of chilling period
Starting Indoors:
Stratify for 30-60 days. Sow in a container, cover with a plastic bag and refrigerate, or mix seed with damp clean sand or vermiculite, bag, and refrigerate at 35-40F. Check often for germination and maintain a lightly moist medium. Transplant any seedlings as they germinate. After the chill period, sow into soilless media and keep at 60-65F.
Starting Outdoors:
Direct sow in fall to early spring into prepared bed or wintersow into pots in the shade, covered with a thin layer of clean sand and a wire screen to keep out mice and voles. Check for water, keeping evenly moist.
WHEN TO SET OUTSIDE
After last frost.
PLACEMENT & CULTIVATION
Native to the upper Midwest states to Texas as well as New York and southern New England, sweet coneflower is a tremendous asset in moist, sunny meadow plantings, where its deep roots, sturdy stems, healthy foliage, and abundant clusters of scented golden daisies light up the garden every summer. Requiring little care, it thrives in heat and various soil types, wetter soils allowing it to grow tall to 6+ feet. Of importance to native bees, it also attracts butterflies and serves as a larval food source—later in the season, goldfinches pluck the seeds. It may require staking in wet soils or shadier locations. Self-sows.
Final Spacing:
2'
Water Requirements:
Medium Water Use
Watering Details:
About 1" per week; do not overwater. May tolerate some drought once well-established.
Soil pH:
Prefers neutral but will tolerate slightly acidic to slightly alkaline
Fertilizer:
If soil is especially poor, mix in about 2" of compost before planting, and top dress with an additional inch each spring.
Diseases & Pests:
No major problems.
When to Cut for Bouquets:
Harvest when flowers are fully open.