Prune the oldest, longest stems to a third of their length.

If you are working on an older plant, prune one-third of the old growth.

Jul 21, Only prune the tallest or least vigorous-looking stems from the plant clump. This is described as thinning out the number of upright stems. Make the pruning cuts flush with the soil or. Mar 21, The best time to prune is late winter/early spring, before the shrub starts to grow. Nandina's growth habit is to produce tall, branchless stems that grow from the basal crown - it can't be trained to a softer, mounding habit like your other shrubs. To prune, cut one-thrid of the oldest, sprawling stems right back to the ground annually.

Prune one-third of the stems, spaced randomly around the nandina, all the way back to the soil level.

Doing so will help you to choose just the right color and style.

Prune another one-third of the stems down to one-half the shrub's height- these stems will sprout new growth and fill in the middle of the shrub. Allow the final third of the stems to remain unpruned. how do you prune Nandina Gulf Stream? Mar 10, Using hand pruners (never hedge shears), renew neglected clumps by cutting one-third of the main stalks to the ground every year for three years.

Maintain a natural appearance by pruning each stalk to a different height, cutting back to a tuft of foliage. Also, remove old and weak branches to encourage new stumpclear.barted Reading Time: 50 secs. Answer: Nandinas are pruned in an uncommon way. If you cut a given stem back almost to the soil line, it will regrow from its base.

If you do that to the tallest one-third of the canes every year, you’ll have a constant supply of fresh and new growth coming up from the ground each spring. Best time for pruning Nandina is in early fall, after you’ve enjoyed her bloom and growth.

Early fall is a good time to help her prepare for next season. Remember that your Nandina has invested all of her energy in your garden over summer, so now it’s time for you to let her crawl slowly into dormancy, rest, and prepare for next seasons challenges. Aug 09, Nandina do not require pruning for health or performance except to remove damaged or dead plant parts or to remove a stray branch that is spoiling the shape of the plant. Compact selections of Nandina (growing under 3 feet in height) remain tidy with little or no pruning.