Echinacea ‘Supreme™ Cantaloupe’ is a patented perennial coneflower that blooms from July through frost, producing semi-double orange flowers that stand 24–30 inches tall in full sun.
Most coneflowers bloom pink or purple for a few weeks, then fade. The ‘Supreme™ Cantaloupe’ variety keeps going from midsummer straight into fall, with unique flowers that open looking like a Gerbera daisy before developing a pom-pom center. It draws bees and butterflies without needing fussy soil or constant watering. The trick to keeping one alive is in the planting step most people get wrong.
What Makes ‘Supreme™ Cantaloupe’ Different From Other Coneflowers
The flower color is where this variety stands out. Instead of the standard purple or white, the petals are a warm cantaloupe orange that holds its tone through the whole season without fading pastel. The blooms are semi-double, meaning rows of petals surround a dense central cone. In early bloom the flower looks almost like a Gerbera daisy; once the center fills in, the overall shape shifts to the classic coneflower silhouette.
Key Specifications At A Glance
The table below lays out the numbers that matter most when planning where this plant fits in your yard.
| Specification | Measurement | Notes |
|---|---|---|
| Mature height | 24–30 inches | Some sources list up to 2.5 ft; spacing varies by region |
| Mature spread | 15–20 inches | Allow room for airflow to prevent mildew |
| Bloom period | July through October | Continuous if deadheaded |
| Hardiness zones | USDA 4–9 | Covers most of the continental US |
| Light need | Full sun | Tolerates part sun but fewer blooms |
| Soil type | Well-drained, average | Rich soil is fine; avoid heavy clay |
| Water need | Low once established | Drought-tolerant after first season |
| Patent number | PP#24,897 | Issued 2014; propagation is restricted |
Where To Plant It For Best Results
Sunlight and drainage decide whether this coneflower thrives or struggles. Full sun — six or more hours of direct light — produces the most flowers and the sturdiest stems. Part sun works but the bloom count drops noticeably. Soil needs to drain well; standing winter water is fatal. It grows in average garden soil without amendment, but rich soil with organic matter mixed in helps it establish faster.
Regional Range
USDA zones 4 through 9 cover most of the country. Zone 4 winters get cold enough to kill less hardy perennials, but the dormant plant handles it fine as long as the crown stays dry. In zone 9, afternoon shade helps the flowers last longer into the season. The plant is not sold to Alaska or Hawaii.
Planting Steps That Avoid The #1 Mistake
The most common reason this coneflower dies is planting depth. Terra Nova Nurseries’ cultivation guide warns: don’t cover the crown with soil. The soil level in the pot and the ground must match exactly. Burying the crown traps moisture against the stem and leads to rot. Space plants far enough apart so air moves freely between them — tight spacing invites Botrytis (gray mold), especially in humid weather.
- Step 1. Dig a hole only as deep as the pot’s soil level — no deeper.
- Step 2. Set the plant in so the crown sits right at ground level.
- Step 3. Backfill and press gently to remove air pockets.
- Step 4. Water in once and then let the soil dry before the next watering.
within a week the oldest leaves should look firm and upright — if they flop or yellow, the crown is likely too deep.
Care Through The Growing Season
The watering rhythm is the most important habit to learn. Wet the soil, then let it dry out fully before watering again. Constant dampness is the second-most-common killer after planting depth. Fertilizer is optional: a low-rate liquid feed (100–150 ppm of a balanced 20-10-20) once a month is plenty. Overfeeding produces floppy stems. Deadhead spent blooms to extend the flowering window, but leave the last flowers of autumn standing for birds to eat the seedheads.
Pricing And Where To Buy
Availability varies by season and supplier. A 3-inch pot runs about $12 from specialty nurseries. Plugs sell in trays of 36 or 72 for commercial growers and serious gardeners. Larger 1-gallon pots finish in 12–14 weeks from a plug and cost more. Order early in spring — the best stock sells out by late May. Check with Roots & Rhizomes or Proven Winners for current inventory.
| Container Type | Typical Price | Finish Time From Plug |
|---|---|---|
| 3-inch pot | $11.95–$12.50 | 6–8 weeks |
| 4-inch pot | $14.00–$16.00 | 6–8 weeks |
| 1-gallon pot | $24.00–$30.00 | 12–14 weeks |
Final Planting Checklist
- Choose a spot with full sun and well-drained soil.
- Space plants 18 inches apart for good airflow.
- Plant with the crown exactly at soil level — never deeper.
- Water deeply once, then allow the soil to dry between waterings.
- Apply a light liquid fertilizer monthly from July through September.
- Deadhead spent flowers for continuous bloom; stop in October for winter seedheads.
References & Sources
- Terra Nova Nurseries. “Echinacea Supreme Cantaloupe.” Official cultivation guide including patent, planting depth warning, and growing specifications.
- Proven Winners. “Supreme Cantaloupe Coneflower.” Mature size, color description, and garden use summary.
- Roots & Rhizomes. “Echinacea Supreme Cantaloupe RA11641.” Current pricing, state shipping restrictions, and product details.
- Gardenia.net. “Echinacea Supreme Cantaloupe.” Bloom period, light requirements, and hardiness zone data.
- Missouri Botanical Garden. “Echinacea Supreme Cantaloupe.” Patent number PP#24,897 and hybrid parentage.