Trimming also increases flowering by preventing the marigold from setting seed. Pinch back seedlings after they are 6 to 8 inches tall but before they begin forming flower buds. Trim the plant after the first flush of flowers. Cut back mature marigolds to maintain their shape throughout the growing season. Click to see full answer. Beside this, are you supposed to prune marigolds?Marigolds (Tagetes spp.), prized for their colorful blooms, are either annuals or perennials, and come in several sizes or growth habits. Marigolds generally require little pruning, although pinching them back promotes a bushier habit and deadheading encourages continued blooming.Secondly, what to do with marigolds at the end of the season? Cut back the marigolds to the ground with clean shears after they die back completely. Remove the trimmings from the bed so they don’t harbor pests over winter. If the marigolds don’t survive winter in your area, pull them up after they begin to decline in fall. Similarly, it is asked, how do you keep marigolds blooming? Marigolds don’t require deadheading, but if dying blossoms are regularly removed, it will encourage the plant to continue blooming profusely. When you water marigolds, allow the soil to dry somewhat between waterings, then water well and repeat the process. Water more in high heat. Do not water marigolds from overhead.Will marigolds reseed themselves?All but the most hybridized varieties of marigolds are perennials. In the warmest regions the plants thrive year round, while in colder zones, they act as self-seeding annuals if you deadhead the blooms and drop them onto the ground. Marigolds aren’t only attractive, they’re useful as well.

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