They do best in morning sunlight. In regions with extremely intense summer heat, receiving a bit of afternoon shade can help prolong the bloom period, but full sun is generally required for maximum flower production. · marigolds perform best when they receive ample sunlight, requiring a minimum of six hours of direct sun exposure each day to fuel their prolific blooming cycle. Here are the 7 most common reasons marigolds don’t bloom and what you can do to resolve the issues: If your marigolds will not bloom , the fix is usually fairly simple. · getting a marigold to flower usually isn’t a difficult task, as the hardy annuals usually bloom nonstop from early summer until they are nipped by frost in autumn. Read on for a few helpful suggestions. In most cases, a few simple fixes can get those flowers popping again in no time. This guide will cover everything from watering and sunlight to pruning and soil care , helping you keep your marigolds blooming continuously. Not enough sunlight. · how can you enjoy marigold blooms throughout the summer? · learning how to care for marigolds properly ensures they stay healthy, colorful, and full of life from early summer through the first frost. Check out these 3 simple tips and tricks that will help keep your marigolds blooming big and bright all summer long - and even into fall! Above all else, marigolds need plenty of sun to encourage flowering. Luckily, there’s an easy fix for each marigold bloom -blocker. Just follow these tips and your garden will be filled with amazing golden flowers. They should always be planted in full sun conditions. We asked gardening experts for the best methods to keep the plant flowering until fall. Marigolds love the sun and need at least six hours of direct sunlight every day to bloom well.