How to PruneMums. If you're growing mums as a perennial, wait until after they have finished blooming in the fall and the foliage has gone completely dormant to prune them. The best time to prunemums to encourage fuller fall blooms is in springtime, once plants have reached between 4 to 6 inches tall. Mums are so nice in the fall! With those cooler months still quite awhile away, why are we talking about Mums right now? The best time to deadhead or prunemums you are growing outside is during the late spring up to mid summer. This is right before blooming season... To help mums come back each year, plant garden varieties (not florist mums), prune regularly, and protect them in winter with mulch or by moving potted ones indoors. Also how to properly pinch or prune back your mums to achieve the best fall look! #greenhouse #chrysanthemum #flowers #gardening #missouri #planttok #plants Fall Mums Update... Are you wondering how to prunemums? Mums, often known as "the golden flower," are an asset to any garden. If taken care of appropriately, mums can stay beautiful year-round even... Pruning hardy mums keeps branches from getting long and leggy or flopping over. It maintains a mounded, leafy form and promotes uniform budding. In this case, learning how to prune back mums properly will be essential. Trimming mums back helps to create plants that are bushier, compact, and even more floriferous. Chrysanthemums, commonly called mums, benefit from proper timing when pinching and cutting back to maximize blooms. For fall displays, growers usually pre-prune them...