Freshwater · Spring to fall best; April to October, spawning May to July in warm shallows
Green Sunfish
Lepomis cyanellus
The big-mouthed bruiser of the sunfish family, built almost like a small largemouth bass. Famously willing and tough, it tolerates poor, warm water that other sunfish avoid, hybridises freely with bluegill (the 'greengill'), and turns up in ponds and creeks across North America.
Seasons · Peak
Identifying features
- Large mouth for a sunfish — the jaw reaches back to below the eye, like a bass
- Thick, bass-like body, less deep and compressed than a bluegill
- Blue-green cheeks and a large dark ear spot edged in pale colour
- Yellow-orange edges on the dorsal, anal and tail fins, brightest in breeding males
- Bluish-green mottling with a faint dark blotch near the rear of the soft dorsal fin
Habits
- Aggressive and territorial; often the dominant sunfish in small ponds
- Tolerates warm, muddy and low-oxygen water better than most sunfish
- Feeds on insects, small fish and crayfish — a real predator for its size
- Hybridises freely with bluegill and other sunfish, producing the 'greengill'
- Nests in shallow-water colonies from late spring into summer
Distribution
Where to find them
- Farm ponds and dock edges in Iowa-Missouri and central-plains waters
- Creek holes and slow runs in Texas and deep-south streams
- Brushy shorelines of small lakes almost anywhere in its range
Where they live
How to catch them
Small baits and lures around docks and ponds Shore
Rig: Light rod, small float and size 8-10 hook, or a tiny crankbait cast along docks, brush and creek holes — famously, it will hit almost anything small
Bait/lure: Worm pieces, tiny crankbaits
Key tip: Fish it like a mini bass — green sunfish strike lures that other sunfish ignore.
Poppers and flies on farm ponds River
Rig: Light fly rod or ultralight spinning rod with a small surface popper worked over pond weed edges at dusk
Bait/lure: Small poppers, sponge spiders
Key tip: Pause the popper after each twitch — the strike usually comes on the pause.
Best baits & lures
Baseline setup
- Rod: Light 5-6 ft spinning rod or 3-4 wt fly rod
- Line: 4-6 lb mono
- Terminal: Size 8-10 hooks, small poppers, tiny crankbaits
Recommended gear for this species
Rod · Best value
9' 5-weight fly rod outfit
≈ US$180-260
Covers chironomid lakes and small rivers with one setup.
Flies · Budget
Chironomid assortment (30 patterns)
≈ US$25-40
Chironomids are 60% of a lake rainbow's diet in spring.
Picks come from our rule library — never paid placements. Prices are guides; affiliate links may earn us a commission.
Typical size
Common 3-6 in; large fish to about 10 in
On the table
Good, mild panfish flesh, but most run small — a few large ones make a meal.
Similar species
BluegillBluegill has a much smaller mouth, a plain black ear flap and a dark chin bar; green sunfish has a bass-like big mouth, a pale-edged ear spot and yellow-edged fins
WarmouthWarmouth is browner, with red-brown streaks on the cheek and a mottled camouflage pattern; green sunfish is blue-green with yellow fin edges and a plainer bodyRegulations vary by area and can change in-season — always check the official rules for your area before you fish. Regulations guide →
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