How Fast Do Largemouth Bass Grow in Kansas, Oklahoma, Texas and Louisiana with Regional Growing Season Effects

Bill Kelley
Apr 7
4 min read

Largemouth bass are a favorite among anglers across the southern and central United States. Their growth rates, however, vary significantly depending on the region, especially when comparing states like Kansas, Oklahoma, Texas, and Louisiana. One of the main factors influencing how fast largemouth bass grow is the length of the growing season, which changes as you move from north to south. This post explores how largemouth bass growth differs across these states and explains the role of regional growing seasons in shaping their development.

Eye-level view of largemouth bass swimming near aquatic vegetation in a clear lake — Largemouth bass growth influenced by regional water conditions

Understanding Largemouth Bass Growth

Largemouth bass growth depends on several factors including water temperature, food availability, and habitat quality. Warmer water temperatures generally speed up metabolism, allowing bass to feed more and grow faster. Conversely, colder water slows their metabolism, reducing feeding activity and growth rates.

The growing season refers to the period when water temperatures are warm enough to support active feeding and growth. In northern states like Kansas, the growing season is shorter due to colder winters. Southern states like Texas and Louisiana enjoy longer growing seasons with milder winters, allowing bass to grow for more months each year.

Growth Rates in Kansas

Kansas sits at the northern edge of largemouth bass habitat in this region. The state experiences cold winters that limit the growing season to roughly 6 to 7 months, typically from late March through October. During this time, bass growth is active but slows significantly or stops during winter months.

Typical growth: A largemouth bass in Kansas can reach about 8 to 10 inches in its first year.
Two-year-old bass: Often measure around 12 to 14 inches.
Factors: Cooler water temperatures and shorter feeding periods restrict growth compared to southern states.

Anglers in Kansas often notice that bass growth picks up quickly in late spring and summer but halts in late fall as water temperatures drop below 50°F.

Growth Rates in Oklahoma

Oklahoma has a slightly longer growing season than Kansas, lasting about 7 to 8 months. Winters are milder, especially in the southern parts of the state, which allows largemouth bass to feed and grow for a longer period.

Typical growth: First-year bass in Oklahoma can reach 10 to 12 inches.
Two-year-old bass: Usually grow to 14 to 16 inches.
Factors: Warmer water and longer feeding seasons support faster growth.

Oklahoma lakes and reservoirs often provide abundant forage like shad and bluegill, which also helps bass grow faster. The state’s central location means growth rates can vary depending on how far north or south the water body is.

Growth Rates in Texas

Texas offers some of the longest growing seasons in the region, especially in the southern and coastal areas. The growing season can last 9 to 10 months or more, with water temperatures rarely dropping below 50°F for extended periods.

Typical growth: Largemouth bass in Texas often reach 12 to 14 inches in their first year.
Two-year-old bass: Can grow to 16 to 18 inches or larger.
Factors: Extended warm periods and plentiful food sources promote rapid growth.

In Texas, bass can sometimes continue feeding and growing through mild winters, especially in southern reservoirs. This extended growth period means bass reach trophy sizes faster than in northern states.

Growth Rates in Louisiana

Louisiana has the longest growing season among the four states, with warm water temperatures lasting 10 to 11 months. The subtropical climate supports nearly year-round feeding and growth for largemouth bass.

Typical growth: First-year bass can reach 14 inches or more.
Two-year-old bass: Often exceed 18 inches.
Factors: Very long growing season and rich aquatic ecosystems provide ideal conditions.

Louisiana’s wetlands and bayous offer abundant forage and cover, which help largemouth bass grow quickly. The mild winters mean bass metabolism remains active for most of the year.

How Growing Seasons Affect Largemouth Bass Growth

The length of the growing season directly impacts how fast largemouth bass grow. Here’s how:

Short growing seasons (Kansas): Bass have fewer months to feed and grow, resulting in slower size increases.
Moderate growing seasons (Oklahoma): Bass grow faster than in the north but slower than in the deep south.
Long growing seasons (Texas and Louisiana): Bass grow rapidly due to extended feeding periods and warmer water.

Water temperature is the key driver. Largemouth bass grow best when water temperatures range between 68°F and 80°F. Below 50°F, their metabolism slows, and growth nearly stops.

Practical Tips for Anglers Based on Growth Patterns

Kansas anglers should focus on spring and summer fishing when bass are actively feeding and growing.
Oklahoma anglers can expect good fishing from spring through early fall, with bass growth peaking in summer.
Texas anglers benefit from a longer fishing season, including late fall and mild winter months.
Louisiana anglers enjoy nearly year-round bass activity, making it possible to catch and target larger bass throughout the year.