Why seed in the fall

The use of brand names does not represent our endorsement of a specific product; rather, it represents our experience only and has not necessarily been replicated in peer-reviewed research. Fall Seeding. Guide to Spring vs. Seed loss due to decay and wildlife consumption is minimized. Seeding can be delayed until weed control is applied in order to improve establishment. Irrigation during periods of dry weather is necessary for proper germination.

Light mulching is an important element of seeding to protect both the seed and soil and retain moisture. Your grasses will enjoy a full fall season, plus a second cool growing season come spring. Your local county extension agent can help with advice on average frost dates and optimal timing for seeding lawns in your area.

Newly planted seed needs consistent soil moisture, and fall planting offers benefits on that front, too. Fall typically brings more precipitation, which lessens the chance that cool-season seeds may dry out, and reduces the need for extra watering on your part. Using premium drought-tolerant, water-conserving grass seed products, such as Pennington Smart Seed and Pennington One Step Complete , lowers the risk of problems even more.

The second best time to seed cool-season lawn grasses is in the spring, once soil and air temperatures warm back up to their optimal range. However, late-melting snows and early spring rains can keep soil cold and overly wet, giving early weeds an advantage. Grasses also have less time to settle in before higher temperatures inhibit germination and cool-season grass growth begins to slow. Planting in late spring and early summer gives warm-season grasses the advantage of warm soil and early seasonal rains, which help keep soil moisture available during germination and establishment.

As with cool-season grasses, best warm-season planting times vary by location. In California, mid-April to mid-May is prime time for seeding warm-season lawns. Wait until all danger of frost has passed and soil warms. Cold, wet soil is a recipe for poor germination, rotting seed and disease. Your county extension agent can help with expected frost dates and timely advice when unexpected weather conditions factor in.

As a general rule, warm-season grasses planted at least 90 days before the first fall frost have time to establish well before winter. With proper timing, warm-season grass seed gets a natural boost from summer's warmth and a full season of active growth and development before cooling temperatures bring on winter dormancy. One exception to the spring seeding rule for warm-season lawns is when overseeding with a cool-season grass, such as perennial ryegrass , for temporary winter color.

Sowing in spring means your lawn will still be developing in summer, at a time when you want to make the most of your garden. Less water management: Spring sowing means you have to worry more about hot weather and the availability of water as seeds need constant supply.

Cool autumn rain means less water management. Stronger established lawn by spring: Young grass plants have more time to grow and get healthy before next summer stress comes. You are giving them a head start to be as strong as possible. Remove debris sticks, stones, etc from the area.

Break up soil clumps larger than a half dollar. Avoid soil that is too fine. Small clumps are acceptable. Level the areas where excess water might collect.

For overseeding an existing lawn: Mow grass as short as possible. Remove debris and dead grass. Level the areas where excess water collects.