![]() There are approximately 33 species in the genus Paeonia, most of which are native to Asia, but also several to Europe and to Western North America. In colder regions, protect the roots by applying a layer of mulch before the ground freezes.The peony ( Paeonia) is a flowering plant grown both as a flower garden ornamental and as a cut flower for fresh floral peony bouquets. Winter care for perennial phlox:Īfter the first killing frost, cut back the stems just above above the soil line and remove and discard the foliage, especially if your plants have been affected by powdery mildew. Telltale signs that phlox is ready for division include sparser blooming and centers that begin to weaken or die out. To prevent overcrowding and improve the vigor of your plants, divide them every 3 to 4 years. Phlox can also be susceptible to damage by spider mites. Also, provide adequate spacing when planting and look for mildew-resistant cultivars. The best preventive measure is to improve air circulation by thinning plants in early spring. Plants growing in partial shade are also more susceptible. The #1 enemy of phlox is powdery mildew, particularly in humid climates during the hot, muggy days of summer. Deadheading the spent flowers may also extend the bloom period and prevent phlox spreading from unwanted reseeding. Phlox doesn’t normally require pruning, but if you want to delay blooming and get bushier plants with more flower heads, pinch or cut back the stems by one-third to one-half in early summer. To keep foliage healthy, water in the morning and at the rootzone, rather than overhead. Ideally, they should receive about an inch of water per week during the growing season. Phlox doesn’t like drought and should be watered during dry spells or whenever you see the foliage begin to wilt. This perennial phlox is hardy in Zones 3-9. stolonifera in that its leaves are linear and 1 inch long.
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