ProCut® Orange Excel
Helianthus annuus
Wikimedia Commons via Common sunflower
Improved earliness in the classic orange sunflower. Even earlier than ProCut Orange by 5-7 days. Single-stem plants have tall, strong stems and 4-6", pollenless blooms. Another exciting introduction from US plant breeder Dr. Tom Heaton and company.
Harvest
50-55d
Days to harvest
Sun
Full sun
Zones
2–11
USDA hardiness
Height
1-10 feet
Planting Timeline
Showing dates for ProCut® Orange Excel in USDA Zone 7
All Zone 7 flower →Zone Map
Click a state to update dates
ProCut® Orange Excel · Zones 2–11
Growing Details
Zone-by-Zone Planting Calendar
| Zone | Indoor Start | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1 | May – June | July – August | July – September | — |
| Zone 2 | April – May | June – July | June – August | — |
| Zone 11 | January – January | January – February | January – March | — |
| Zone 12 | January – January | January – February | January – March | — |
| Zone 13 | January – January | January – February | January – March | — |
| Zone 3 | April – May | June – July | June – August | — |
| Zone 4 | March – April | June – June | June – July | — |
| Zone 5 | March – April | May – June | May – July | — |
| Zone 6 | March – April | May – June | May – July | — |
| Zone 7 | February – March | April – May | April – June | — |
| Zone 8 | February – March | April – May | April – June | — |
| Zone 9 | January – February | March – April | March – May | — |
| Zone 10 | January – January | February – March | February – April | — |
Succession Planting
ProCut Orange Excel throws one bloom per stem and doesn't reflush, so without succession sowing you'll have a glut at week 55 and nothing after. Direct sow every 14 days from April 1 through late June in zone 7; that cadence spreads your harvest window across most of summer. Stop new sowings by early July — plants germinating after that will reach their 50–55 day bloom window as nights drop and daylength contracts, and the stems get shorter and the petals less saturated. Work backward from your last desired cut date and count off 55 days to find your final sow date.
Complete Growing Guide
ProCut® Orange Excel sunflowers offer an impressive window for harvest success, reaching their spectacular blooms in just 50 days from sowing. For the earliest possible flowers, start seeds indoors 4-6 weeks before your last spring frost date, sowing them into individual pots to minimize transplant shock when moving these vigorous growers outdoors. Alternatively, direct sow seeds into the garden after all frost danger has passed and soil temperatures reach at least 50°F, though indoor starting will give you those prized early blooms that justify this variety's "Excel" designation. Plant seeds one inch deep, spacing them 12-18 inches apart in rows; the variation in final height—from 18 inches to 10 feet depending on growing conditions—means closer spacing works for shorter specimens while wider spacing supports taller plants that may reach their maximum potential.
Prepare your soil with plenty of organic matter worked in several weeks before planting, as ProCut® Orange Excel performs best in well-draining soil rich in nutrients. Full sun is non-negotiable; these plants require minimum six hours daily but thrive with eight or more. Once established, water deeply and consistently, aiming for one inch per week through rainfall or irrigation. Keep soil evenly moist during the first month as plants establish their root systems; this early consistency directly influences stem strength and the development of those impressive 4-6 inch pollenless blooms. After flowering begins, you can reduce watering frequency slightly, though never let the soil dry completely during bloom development.
Feed ProCut® Orange Excel every two to three weeks with a balanced fertilizer once plants reach 12 inches tall, switching to lower nitrogen formulation as flower buds form to encourage blooming rather than excess foliage. This variety's pollenless flowers make it particularly valuable for cut flowers, but this trait doesn't excuse you from deadheading spent petals—removing them encourages the plant to continue producing those saleable secondary shoots if you're growing commercially.
Watch closely for spider mites during hot, dry spells, as ProCut® Orange Excel's vigorous growth and thick foliage can hide infestations until damage becomes visible. Check the undersides of leaves regularly and increase air circulation through spacing. Powdery mildew occasionally troubles this variety, particularly in humid regions, so avoid overhead watering and ensure adequate spacing for airflow.
One critical mistake gardeners make with ProCut® Orange Excel is underestimating its earliness advantage and planting successive crops too close together. Since this variety blooms five to seven days earlier than standard ProCut Orange, stagger plantings at two-week intervals rather than three-week intervals if you're growing for continuous harvest. This adjustment maximizes your market window and prevents feast-or-famine production cycles.
Harvesting
ProCut® Orange Excel reaches harvest at 50 - 55 days from sowing per Johnny's Selected Seeds. Expect 4-6" at peak. As an annual, harvest continues until frost ends the season.
Seeds are ovoid and somewhat flattened
Color: Black, Brown/Copper. Type: Achene. Length: < 1 inch. Width: < 1 inch.
Garden value: Edible
Harvest time: Fall
Edibility: Seeds are used for cooking oil, livestock feed, and as a snack food or garnish. Petals are edible and young flower buds can be steamed like artichokes.
Storage & Preservation
Fresh-cut ProCut® Orange Excel blooms last 10-14 days in a cool room (65-70°F) with proper care. Use a clean vase with floral preservative, and recut stems every 2-3 days, removing approximately ½ inch from the base at a 45-degree angle to maximize water uptake. Change water completely every other day and remove any leaves that fall below the water line. Keep flowers away from direct sunlight, ripening fruit, and ethylene-producing plants.
For longer-term preservation, air-dry mature blooms by hanging upside-down in a dark, well-ventilated space for 2-3 weeks. Dried ProCut Excel sunflowers retain their vibrant orange color exceptionally well and work beautifully in dried arrangements. Alternatively, freeze blooms whole in shallow boxes at 0°F for later use in dried arrangements or crafts, though they become brittle when thawed. Glycerin preservation is not recommended, as it darkens the orange hue. For commercial growers or frequent cutters, condition stems in cold water (40-50°F) for 4-6 hours before arranging to maximize vase life.
History & Origin
ProCut® Orange Excel is an F1 hybrid developed through controlled cross-pollination. Listed in the Johnny's Selected Seeds catalog.
Origin: Western United States
Advantages
- +Exceptionally early maturity at 50-55 days enables quick succession planting.
- +Pollenless blooms reduce allergens and extend vase life significantly.
- +Tall strong stems ideal for professional cut flower arrangements.
- +Large 4-6 inch blooms provide impressive visual impact for arrangements.
- +Improved earliness over standard ProCut Orange saves 5-7 days.
Considerations
- -Pollenless trait may reduce appeal to some gardeners and pollinators.
- -Early maturity requires precise timing to avoid market oversaturation.
- -Strong stem vigor demands adequate spacing to prevent crowding issues.
Companion Plants
Marigolds (French types like 'Petite Gold') and nasturtiums earn their spots near sunflowers for different reasons: marigold root secretions suppress aphids and whiteflies at the soil level, while nasturtiums act as a trap crop, pulling Aphis helianthi colonization away from your sunflower stems. Alyssum and calendula along the bed edges pull in parasitic wasps that do real pest work. Fennel and black walnut are the two to exclude — fennel suppresses nearby annuals through allelopathic root chemistry, and black walnut produces juglone, a compound that disrupts root respiration in a wide range of plants, sunflowers included.
Plant Together
Marigolds
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Zinnias
Attract beneficial pollinators and predatory insects, create colorful mixed displays
Nasturtiums
Act as trap crops for aphids and cucumber beetles, repel squash bugs
Alyssum
Attracts beneficial wasps and hoverflies that control aphids and thrips
Cosmos
Attract beneficial insects and pollinators, provide complementary height and texture
Calendula
Repel aphids and whiteflies, attract beneficial insects, similar growing requirements
Basil
Repels aphids, thrips, and flies while attracting beneficial pollinators
Lavender
Repels moths, fleas, and mosquitoes while attracting beneficial pollinators
Keep Apart
Black Walnut
Releases juglone toxin that inhibits growth and causes wilting in sensitive plants
Fennel
Produces allelopathic compounds that inhibit germination and growth of nearby plants
Eucalyptus
Releases allelopathic oils that suppress growth of most garden plants
Pests & Disease Resistance
Common Pests
Spider mites, aphids
Troubleshooting ProCut® Orange Excel
What you'll see, why it happens, and what to do about it.
Fine webbing on leaves and stems, with stippled or bronzed foliage — often showing up during a hot, dry stretch
Likely Causes
- Two-spotted spider mite (Tetranychus urticae) — populations explode when temps stay above 85°F and humidity is low
- Dusty or water-stressed plants, which are more attractive to mites
What to Do
- 1.Knock mites off with a strong spray of water — do it early morning so foliage dries before evening
- 2.Apply insecticidal soap or neem oil, hitting the undersides of leaves where mites congregate
- 3.Keep plants consistently watered; stressed plants get hit harder and recover slower
Sticky residue on leaves and stems, with clusters of small soft-bodied insects — usually on new growth or the undersides of leaves
Likely Causes
- Sunflower aphid (Aphis helianthi) — colonies build fast and excrete honeydew, which can develop into sooty mold if left alone
- Absence of natural predators, often because the planting is isolated from flowering plants that draw beneficials in
What to Do
- 1.Spray colonies off with water or apply insecticidal soap directly to the clusters
- 2.Plant alyssum or calendula at the bed edges — both draw parasitic wasps and lacewings that feed on aphids
- 3.Cut back on nitrogen fertilizer; soft, lush growth is exactly what aphids target
Seedling snaps or tips over at the base, sometimes with a hollowed or chewed stem just above soil level, on plants under 12 inches tall
Likely Causes
- Cutworm (Agrotis spp.) — larvae sever stems at ground level overnight
- Transplanting into soil with high organic debris where larvae are already overwintering
What to Do
- 1.Press a cardboard or plastic collar around each stem — 1 inch into the soil, 2 inches above ground
- 2.Apply Bacillus thuringiensis var. kurstaki (Bt) to the soil surface at transplant time
- 3.Direct-sown plants often clear the vulnerable seedling stage faster than transplants — worth trying if cutworms have been a recurring problem
Frequently Asked Questions
How long does ProCut® Orange Excel take to bloom from seed?▼
Is ProCut® Orange Excel good for beginners?▼
Can you grow ProCut® Orange Excel in containers?▼
What makes ProCut® Orange Excel different from regular sunflowers?▼
When should I plant ProCut® Orange Excel seeds?▼
How much sunlight does ProCut® Orange Excel need?▼
Growing Guides from Wind River Greens
Where to Buy Seeds
Sources & References
External authority sources used in compiling this guide.
- BreederJohnny's Selected Seeds
See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.