When to Plant Basil in Rhode Island
The king of herbs. Basil and tomatoes are best friends in the garden and in the kitchen.
The Short Answer
Rhode Island Frost Dates
Your planting dates depend on which part of Rhode Island you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Rhode Island | 6a, 6b, 7a | Apr 15 - May 5 | Oct 5 - Oct 25 |
Basil Planting Schedule for Rhode Island
Rhode Island (Zones 6a, 6b, 7a)
Average last frost: Apr 15 - May 5 · Average first frost: Oct 5 - Oct 25
Growing Basil in Rhode Island
Basil in Rhode Island's Climate
Your summer warmth grows excellent basil from transplant through first frost. Start indoors 6 weeks before last frost or buy transplants. Basil peaks in July-August when heat intensifies the essential oils. Succession plant or pinch flowers to keep production going. Plant near tomatoes — the classic companion pairing that works in the kitchen as well as the garden.
Soil Considerations for Rhode Island
Rocky, acidic New England soils. Sandy near coast. Glacial deposits throughout. Amendment needed for most vegetable gardening. Make sure soil has warmed to at least 60°F before planting basil outside.
Rhode Island Climate & Growing Season
Maritime climate moderates temperatures. Four seasons. Moderate growing season. Ocean influence reduces frost risk near coast. Basil cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing Tips
Pinch off flower buds to keep leaves producing. Harvest from the top down, cutting just above a leaf pair. Succession plant for season-long supply.
Companion Planting
Plant basil alongside these companions for better growth:
Keep basil away from:
The Bottom Line
Last reviewed: March 29, 2026