Bellsprout locations — where to catch

In Lumiose City (Legends: Z-A)

Aymlis Park — Walk
Bleu Sector 2 — Static Encounter
Bleu Sector 3 — Walk
Bleu Sector 6 — Walk
Bleu Sector 7 — Walk
Bleu Street — Static Encounter
Jaune Sector 11 — Walk
Jaune Sector 2 — Walk
Jaune Sector 7 — Walk
Jaune Sector 8 — Walk
Magenta Sector 3 — Walk
Magenta Sector 6 — Walk
Magenta Sector 8 — Walk
Rouge Sector 5 — Walk
Rouge Sector 8 — Walk
Vert Sector 1 — Walk
Vert Sector 2 — Walk
Vert Sector 7 — Walk
Vert Sector 9 — Walk
Wild Zone 10 — Walk
Wild Zone 5 — Walk

In Kitakami (Scarlet & Violet – The Teal Mask)

Apple Hills — Walk
Kitakami Road — Walk
Mossfell Confluence — Walk
Wistful Fields — Walk

In Sinnoh (Diamond, Pearl & Platinum)

Route 224 — Walk
Route 229 — Walk
Sea Route 230 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

Johto Safari Zone — Walk
Route 24 — Walk
Route 25 — Walk
Route 31 — Walk
Route 32 — Walk
Route 44 — Walk
Route 5 — Walk
Route 6 — Walk

In Kanto (FireRed & LeafGreen)

Route 12 — Walk
Route 13 — Walk
Route 14 — Walk
Route 15 — Walk
Route 24 — Walk
Route 25 — Walk
Route 5 — Walk
Route 6 — Walk
Route 7 — Walk

In Sevii Islands (FireRed & LeafGreen)

Berry Forest — Walk
Bond Bridge — Walk
Cape Brink — Walk
Water Path — Walk

In Johto & Kanto (Gold, Silver & Crystal)

Route 24 — Walk
Route 25 — Walk
Route 31 — Walk
Route 32 — Walk
Route 36 — Walk
Route 44 — Walk
Route 5 — Walk
Route 6 — Walk

In Kanto (Red, Blue & Yellow)

Route 12 — Walk
Route 13 — Walk
Route 14 — Walk
Route 15 — Walk
Route 24 — Walk
Route 25 — Walk
Route 5 — Walk
Route 6 — Walk
Route 7 — Walk

Other games (5)

Brilliant Diamond / Shining Pearl (Gen 8): Route 229, Sea Route 230
Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Kanto Route 1, Kanto Route 12, Kanto Route 13, Kanto Route 14, Kanto Route 15, Kanto Route 2, Kanto Route 24, Kanto Route 25, Kanto Sea Route 21, Viridian Forest
Sun / Moon (Gen 7): Alola Route 5
X / Y (Gen 6): Kalos Route 14
Black / White (Gen 5): White Forest

Bellsprout — full Pokédex entry