Growing U.S. Flower Seeds in the Caribbean: What Works and Why

Yes, most temperate annual and perennial seeds sold in the U.S. will grow in the Caribbean—often better than in their native range. The year-round warmth, ample sunlight, and no frost create ideal conditions for many species.

What Thrives

• Heat-loving annuals: Zinnias, marigolds, cosmos, sunflowers, celosia, gomphrena, portulaca.
• Tropical perennials grown as annuals up north: Impatiens, begonias, coleus, pentas, salvias.
• Vegetables: Tomatoes, peppers, eggplant, okra, basil—perennial in tropics.

What Struggles

• Cool-season crops: Pansies, snapdragons, sweet peas, lobelia—need chilling or mild temps.
• Plants requiring vernalization: Some biennials/perennials (foxglove, hollyhock) won't flower without cold.
• Day-length sensitive species: Chrysanthemums, poinsettias—may bloom at wrong times or not at all near the equator.

Keys to Success

1. Source quality seed from reputable suppliers who ship internationally.
2. Sow in well-draining mix—heavy tropical rains cause damping off.
3. Provide afternoon shade for seedlings; full sun can scorch tender growth.
4. Monitor for pests—tropics harbor year-round insect pressure.

Embrace the bounty: your Caribbean garden can be a continuous flower show with minimal dormancy.