For planting Roma tomatoes, the recommended spacing depends on whether the plants are determinate (bush type) or indeterminate (vining type), but most Roma tomatoes are determinate.

• In the garden (in-ground): Space Roma tomato plants about 24 to 36 inches (2 to 3 feet) apart. This spacing allows for good air circulation, reduces competition for nutrients and water, and helps prevent disease

• Between rows: Leave about 3 to 4 feet between rows to allow room for walking, weeding, and harvesting, as well as to improve airflow

• In raised beds: You can space plants slightly closer, around 24 to 30 inches apart, because raised beds have better drainage and soil control. Still, avoid overcrowding to maintain airflow and light penetration

• In containers: Plant one Roma tomato per pot, using containers that hold at least 5 gallons of soil to provide enough root space

• If growing indeterminate Roma varieties: Space them toward the wider end (about 3 feet apart) to accommodate their larger size and sprawling growth habit

In summary, a good rule of thumb is to plant Roma tomatoes 2 to 3 feet apart in rows spaced 3 to 4 feet apart, adjusting slightly based on your planting method and tomato variety. This spacing promotes healthy growth, reduces disease risk, and supports a productive harvest