Zolla, commonly known as sod in English, refers to pre-grown sections of grass harvested with a thin layer of soil and roots. This method quickly establishes a new lawn, offering an instant green space. Its popularity stems from its ability to efficiently transform landscapes.
What is Zolla (Sod)
Zolla, or sod, is a mature layer of grass grown on a specialized farm. It includes the grass blades, their extensive root system, and a thin layer of soil. This mat is typically held together by the dense network of roots or sometimes by a biodegradable netting, ensuring integrity during transport and installation.
When harvested, zolla is cut into uniform rolls or squares for convenient handling and laying. Sod composition varies, featuring different grass types depending on climate and intended use. This pre-grown nature provides an established turf from day one.
Benefits of Using Zolla (Sod)
Choosing zolla for a new lawn offers several advantages over traditional seeding methods. A significant benefit is the instant establishment of a lush, green lawn, eliminating the waiting period of growing grass from seed. This immediate coverage also provides effective erosion control, as the dense root system of the sod helps stabilize the soil and prevent runoff.
Zolla naturally suppresses weeds because it creates a thick, living mat that leaves little room for weed seeds to germinate. This results in a more uniform appearance than seeded lawns. Additionally, a new sod lawn can typically handle light foot traffic much sooner, often within 7 to 10 days, compared to seeded lawns.
Preparing for Zolla Installation
Proper preparation of the installation area is important for successful zolla establishment. Begin by thoroughly clearing the site of all existing vegetation, debris, rocks, and old grass. This can involve stripping the top layer or applying a non-selective herbicide for easier removal.
After clearing, rough grade the area to address any drainage issues and ensure proper water flow away from structures. Loosen the soil to a depth of 6 to 8 inches, typically using a rototiller, to create a receptive bed for the new roots. Soil testing is recommended to determine pH levels and nutrient deficiencies; based on results, amendments like compost or starter fertilizer can be tilled in to enhance soil structure and fertility. Finally, finish grade the area to achieve a smooth, level surface, removing any remaining debris.
Installing Zolla
Once the ground is prepared, zolla installation can begin. Start laying the sod strips along the longest straight edge of the area to ensure a straight initial row. Unroll each piece carefully, ensuring it lies flat against the prepared soil without any air pockets.
Stagger the seams of subsequent rows to prevent long, continuous lines and enhance the overall stability of the lawn. Press each piece tightly against the adjacent ones to eliminate gaps, but avoid overlapping the edges. Trim any excess sod with a sharp knife or sod cutter to fit irregular shapes or around obstacles. After laying a section, use a lightweight lawn roller to ensure good contact between the sod’s roots and the underlying soil.
Caring for Newly Laid Zolla
Immediate and consistent care is important for newly laid zolla to root successfully and thrive. Water the sod thoroughly immediately after installation, ensuring water penetrates to a depth of at least 6 inches. For the first two weeks, water the new sod multiple times daily, keeping it consistently moist without oversaturating.
Avoid foot traffic on newly laid zolla for the first two to three weeks to prevent compaction and allow roots to establish undisturbed. The first mowing should occur around 14 days after installation, or when the grass reaches about 3 inches. Set mower blades to cut no more than one-third of the grass blade length, maintaining a height of 2.5 to 3 inches, and ensure blades are sharp to avoid tearing the tender new grass. Fertilization can be considered after three to four weeks, or as recommended by a soil test.