I have had a potted Breynia for more than ten years in.

Jun 25, Snow on the mountain plant only responds to herbicides when there is new growth on the plant, so use it in early spring or mow down the plants and allow new growth to emerge before spraying the plants. When growing variegated forms of snow on the mountain plant, you may occasionally see a solid green plant.

Dig these plants out immediately, getting rid of as much of the Estimated Reading Time: 2 mins. May 23, Another thing you can do is, after pulling or cutting down the Snow on the Mountain plant, try covering the area around the hostas with mulch or black plastic to try to kill the unwanted plants.

As a last resort, without using chemicals (see here), you could re-dig all the hostas with the accompanying Snow on the Mountain plants. Clean off all the soil around the hostas. Dec 13, The bush is tolerant of any soil, including sand, but it must be kept watered. Salt air or saline soil will harm the plant. When your snow bush is young, pinch the end stems to promote a denser form.

You can propagate it by sucker division or cuttings. Root softwood cuttings in summer, and use bottom heat to promote rooting. Snow Bush CareEstimated Reading Time: 3 mins. Sterilize the blades of your pruning shears with rubbing alcohol on a rag before each use to prevent the spread of disease or fungi from previously pruned plants.

2 Cut back one-third to half of. Snowmound spirea is a compact deciduous shrub, growing to 5 feet in height and width in U.S. Department of Agriculture plant hardiness zones 4 to 8. It needs regular watering but only occasional. This plant self-seeds so be prepared to pull up baby shoots around the mama plant. Trim for size occasionally, cut back a bit harder in spring (late March to early April).

Water on a regular basis but don't keep the area overly wet.